CaseAdvancedQuality, Cost & Token Economics / Cost modeling and unit economics / #22

What should you do when a single enterprise customer becomes unprofitable?

PICK · cost modeling and unit economics

Chancery priced one customer like every other customer. The real choice was between having an uncomfortable pricing conversation out loud, or quietly making the product worse and hoping nobody on a live deal ever needed the depth it used to have.

The direct answer
Go to the customer and renegotiate the price against their real usage before you do anything else, including quietly capping what the product does for them. If they won't move and the losses keep growing, walk away from the account. Only engineer the cost down after you've measured that it doesn't quietly cost the customer the exact accuracy they're paying you for.
Do this, in order
  1. Bring the real numbers to the customer and renegotiate the price openly, before capping usage or walking away.Why: it's the only option where the customer still knows exactly what they're getting and what it costs.
  2. Never cap usage or quality quietly to control cost without telling the customer.Why: a quiet cap looks free on your invoice and costs the customer a mistake they don't find out about until it's already expensive.
  3. Set a kill criterion in dollars and months before the conversation, not during it.Why: a burn number decided under pressure, mid-negotiation, always gets talked back down by whoever wants to keep the logo.
  4. If you do engineer the cost down, measure it against the exact high-stakes cases first, not the average case.Why: an average accuracy score can hold steady while the one clause type that actually matters quietly gets worse.
  5. Walk away from the account if it refuses to move and the losses keep compounding.Why: subsidizing one account forever isn't a strategy, it's a bet that the losses will fix themselves, and they don't.
  6. Don't renegotiate at all if the surge is a one-time spike that's already tapering.Why: reopening a contract over a temporary blip spends trust you'll want back the next time the usage really is the new normal.

How to answer this, stage by stage

Nobody's testing whether you'd notice a customer is losing money. They're testing whether you'll say the uncomfortable thing out loud, or quietly change the product instead and call that a fix.

1
Scope it to one concrete product before answering in the abstract
Say it like this
"Let's ground this in one product. Chancery is an AI tool that reads a vendor contract, flags the risky clauses against a legal team's own playbook, and proposes the redline. Thea Coyne is the PM who owns what it costs to serve each enterprise account."
Why this works
A general pricing question turns into a business-school answer fast. One product turns it into a real decision with a real number behind it.
2
Say your structure out loud before naming a single dollar figure
Say it like this
"I'm going to pick a position on what I'd do first, say who actually feels each kind of cost, name which error is the one that's hidden, then say what would make me walk away entirely."
Why this works
Tells the interviewer you have a method, not a mood, before you've said a single figure out loud.
3
Position: name the actual pick before any of the reasoning
Say it like this
"When one enterprise account is losing money, I'd renegotiate the contract against real usage before I did anything else. Not cap what the product does for them quietly, and not walk away as a first move. Renegotiate first, because it's the only option where the customer still knows what they're actually getting."
Why this works
Commits to an order of operations before the numbers arrive, so the rest of the answer sounds like judgment, not a scramble once finance called.
4
Impact: say who actually feels each kind of cost
Say it like this
"Chancery's finance team feels the burn every month, it's a line that keeps climbing against a flat contract. Denhurst's legal team feels a quiet cap as a review that looks the same on screen but quietly stopped doing the deep pass it used to do. And Chancery's own sales team feels it too, because Denhurst is the account every enterprise prospect gets pointed to."
Why this works
Splits the cost by who notices it first, which is what actually decides which option is cheap and which one just looks cheap.
5
Cost asymmetry: name which error is cheap and which is hidden
Say it like this
"An awkward pricing conversation is the cheap, visible error. It's uncomfortable, it's over in a week, and everyone knows exactly where they stand afterward. A quietly capped review that misses a real clause on a live acquisition is the hidden, expensive one. It costs nothing on the invoice and costs the customer a liability they find out about months later, on a deal that's already closed. I'd spend to protect against the hidden one, not to avoid the awkward call."
Why this works
This is the heart of PICK. Naming which error is cheap and which is hidden is what makes the pick a real decision instead of a wish that both were free.
6
Kill criteria: say what would flip the pick
Say it like this
"If Denhurst refuses to move off the old price after seeing the real numbers, and the losses keep growing for another two months, I'd walk away from the account rather than keep subsidizing it. But if the surge is a one-time thing, one acquisition binge that's already slowing down, I wouldn't reopen the contract at all. Reopening it over a blip spends trust I'd want back later."
Why this works
Shows the pick isn't stubborn. A confident answer that can also say when it would change is what separates judgment from a fixed opinion.
7
Close on the decision, not the arithmetic
Say it like this
"So: renegotiate first, out loud, with real numbers. Never cap quality quietly to control the bill. Set the walk-away number before the conversation, not during it. And if I do engineer the cost down later, I check it against the highest-stakes clauses first, not the average."
Why this works
Ending on the rule, not the last number crunched, is what makes this sound like judgment instead of a burn report read aloud.

Let's learn

What do you actually owe a customer who's losing you money: a quieter product, or an honest phone call?

Chancery is an AI tool built for enterprise legal teams. A lawyer uploads a vendor contract, and Chancery reads it against the company's own playbook, flags the risky clauses, and proposes the redline language before anyone signs off.

Before Chancery, a senior associate at a law firm or in-house legal team read every vendor contract by hand. A standard contract, an NDA or a simple services agreement, took about 90 minutes to review properly. A genuine deep due-diligence contract, the kind with cross-referenced schedules and buried liability clauses that only shows up during an acquisition, took a full working day, about 8 hours. At the volume of one modest bolt-on acquisition, 40 contracts, that was roughly 220 hours of associate time.

Denhurst Capital, a private equity firm, signed Chancery's enterprise tier two years ago: $15,000 a month, unlimited reviews. At signing, Denhurst ran about 40 contracts a month, almost all standard vendor paper. Chancery's own cost to serve them was about $800 a month in model calls. Nobody watched that line. There was no reason to.

Knowledge spark: why does a "deep" review cost so much more? A standard review reads one contract against a fixed playbook, one pass, done. A deep due-diligence review has to check a clause against hundreds of other contracts in the same deal for precedent and cross-reference, often several passes with a much larger model, because a liability clause on page 40 can quietly change what a clause on page 3 actually means.

The turn: then Denhurst went on an acquisition spree, fourteen bolt-on deals in five months. Volume climbed to 260 contracts a month, and a third of those now needed the deep due-diligence pass. Chancery's own cost to serve the account climbed from $800 a month to about $38,200 a month, while Denhurst's bill stayed exactly where it was signed: $15,000 a month, flat. The extra spend was never really the problem. The problem was that this account would keep losing more money every single month, because nothing about the flat price had anything to do with how Denhurst was actually using the product now.

Cost, by the numbers: what one contract costs each way
$350 $175 0 Deep review $350 a contract Standard review $20 a contract
Deep due-diligence review, per contractStandard review, per contract
One deep review costs about seventeen times what a standard review costs. Denhurst's mix didn't just grow, it shifted hard toward the expensive kind, and the flat price never noticed.
Every month, the price stayed exactly where it was signed. The cost to serve it never did. Nobody had priced the difference between a customer that reviews paperwork and a customer that's buying companies.
The choice that mattered Once the burn was real and growing, Thea's job was to bring it to Denhurst and renegotiate against actual usage, instead of quietly changing what Chancery did for them to bring the cost back down without saying so.
Hand sketched comparison. Left panel, a small blue gauge icon labeled renegotiate out loud, caption one awkward call, done in a week, everyone sees it. A hand lettered VS sits between the two panels. Right panel, a larger red orange box with a question mark, labeled cap it quietly instead, caption a missed clause on a live deal, found months later.
The awkward call is small and over fast. The quiet cap is the one that grows in the dark, on someone else's live deal.

At its worst, quietly capping what Chancery does to control the bill doesn't fail loud. It fails on exactly the contract where the depth mattered most, the one buried liability clause a deep pass exists to catch, on a deal that's already closing. That's worse than if Denhurst had never used an AI tool at all, because a lawyer who trusts a capped review stops double-checking it themselves.

The choice I would take back: Thea's first move, before any renegotiation, was to quietly cap the deep due-diligence pass at two model passes per contract instead of the adaptive number a genuinely complex contract needed, sometimes five, to bring the compute bill down without an uncomfortable pricing call with a reference customer.

What I'd leave alone: Chancery's smaller enterprise accounts, the ones with steady, modest volume and no acquisition spikes, stay on the same flat unlimited pricing. The model only breaks when usage genuinely changes shape, not just when it grows a little.

The lesson: a flat price is a bet about how a customer will use your product, not a promise about what serving them will always cost. The bet holds right up until the customer's own business changes shape, and you don't find that out from the invoice you send them. You find it from the cost line you stopped watching.

Now here is the same thing as a story

Read the long version below when you want to feel why the quiet cap went wrong, not just be told that it did.

Thea Coyne could read Chancery's enterprise account list and tell you which customer was about to become a problem before finance finished building the quarterly report. She'd owned Denhurst's account since the contract was signed, back when "unlimited reviews" was a line nobody thought twice about.

The first eighteen months were quiet. Denhurst's legal team opened Chancery most weekday mornings around nine, ran a handful of standard vendor contracts through it before lunch, and the account barely showed up in any review of Chancery's margins. Then Denhurst's fund closed a new round and went shopping. Fourteen bolt-on acquisitions in five months, and Denhurst's legal team started running every target company's entire vendor contract book through Chancery's deep due-diligence mode, sometimes forty deep reviews in a single week.

Thea saw the burn climbing in her weekly cost dashboard: $800, then $6,000, then $19,000, then $38,200 a month, against a $15,000 flat contract. She didn't take it to Denhurst right away. It was the last week of the quarter, finance wanted trimmed spend across every account, and a pricing renegotiation with Chancery's single biggest reference logo felt like exactly the kind of conversation nobody wanted to be the one to start. So instead, she asked engineering to cap the deep due-diligence pass at two model passes per contract, down from the adaptive count the review normally used, quietly, in a config change nobody outside the team would see.

Chancery never threw an error. It just kept handing back a redline in the same confident format, on a review that had quietly stopped doing the fifth pass that would have caught what mattered.

It came back on a Tuesday afternoon, six weeks later, not as an outage but as a phone call. A Denhurst paralegal, doing a final manual read before a deal closed the next morning out of old habit rather than any doubt in the tool, found a change-of-control clause buried in a cross-referenced schedule that Chancery's redline had missed entirely. The two-pass cap had stopped short of the cross-reference check that a genuine deep review does on pass four and five. It was caught, barely, the night before signing, not after.

Thea pulled Chancery's own eval set and ran it against the capped version, specifically on change-of-control and indemnification clauses, the rare, high-stakes kind. Accuracy on that clause family had fallen from about 93 percent to about 68 percent under the two-pass cap. The overall average across all clause types had barely moved, because those clause types are rare in the mix, which is exactly why nobody watching the average had caught it.

The decision Thea would take back isn't capping the review to protect margin, that's a real tradeoff worth considering some quarters. It's deciding to cap it quietly, without telling Denhurst, instead of picking up the phone and having the pricing conversation she was avoiding.

Run that quarter again with one change: the cap never ships without Denhurst knowing. Instead, in month two, once the burn crosses $18,000 for two months running, Thea brings Denhurst the real numbers and proposes a usage-based add-on: $250 for every deep review past the first 40 in a month. Denhurst's legal team agrees inside a week, mildly annoyed, genuinely fine. The two-pass cap never gets built. The change-of-control clause gets its full five-pass review like every other one. The near miss never happens, and the account is profitable again by month three instead of quietly losing $23,000 more every month it went unaddressed.

One design trusted a quiet config change to make an uncomfortable number go away. The other trusted an honest conversation to make the same number go away, in the open, with the customer still getting what they were told they were getting.

What I'd tell myself the week I shipped that cap: an awkward phone call you're avoiding doesn't stop being the answer just because a config change is faster to ship than a conversation.

PICK, four moves for an unprofitable enterprise account

This isn't a churn question wearing a pricing question's clothes. It's a real pick, and PICK is what keeps "renegotiate the contract" from staying a hunch instead of a decision you can defend under follow-up.

PPosition. What's the actual call, stated before any reasoning?
Renegotiate the contract against real usage first, before capping what the product does or walking away. Bring the customer the real numbers and price the deep-review mode by what it actually costs to serve, instead of pretending the flat fee still fits.
State the position first, or the reasoning that follows just sounds like a search for whatever option was already the easiest to ship quietly.
IImpact. Who feels each kind of cost, and in what units?
Chancery's finance team feels the burn every month, a growing gap between the flat price and the real compute cost. Denhurst's legal team feels a quiet cap as a redline that looks identical but has quietly stopped catching the clauses it used to catch. Chancery's sales team feels it too, since prospects in the private equity world all get pointed to the exact same reference account.
Naming who feels which cost is what turns "this account is losing money" into a real tradeoff instead of a number on a slide.
CCost asymmetry. Which error is cheap, and which is hidden?
An awkward renegotiation call is the cheap, visible error. It's uncomfortable, it's over in a week, and both sides know exactly where they stand afterward. A quietly capped review that misses a clause on a live acquisition is the hidden, expensive one. It costs nothing on the invoice and costs the customer a liability they discover months later, on a deal that's already closed. Optimize against the hidden one.
This is the hardest step, and the one most answers skip. If both sides of a tradeoff cost the same, the asymmetry hasn't actually been found yet.
KKill criteria. What evidence would flip the pick?
If Denhurst refuses to renegotiate after seeing the real numbers and the burn keeps growing for another two months, walk away from the account rather than keep subsidizing it. If the surge turns out to be a one-time spike that's already tapering, don't reopen the contract at all, since the trust spent on an unnecessary renegotiation doesn't come back cheap either.
A pick that can't say what would change it isn't really a pick, it's just a preference dressed up as a decision.
The kill line: how many deep reviews a month before the flat price loses money
$40k $20k 0 0 43 100 deep reviews / mo $15,000 flat price breakeven, about 43 deep reviews
Chancery's real compute cost to serve DenhurstDenhurst's flat monthly price
At 43 deep reviews a month, the cost to serve the account crosses the flat price it's paying. Denhurst was already running about 90, more than double the breakeven line, for five months before anyone renegotiated.

Three things worth stating directly, since this is where the real judgment sits. The alternative Thea's team seriously considered was walking away from the account immediately once the burn crossed $30,000 a month, rather than attempting a renegotiation first. It lost because Denhurst had never done anything wrong, they were using exactly the product they were sold, at exactly the depth they'd been promised, and Chancery's own pricing model was the thing that hadn't kept up. Churning a customer for using your product correctly is a sales problem dressed up as a customer problem. The AI-specific failure worth naming by name is silent quality degradation from a cost-saving change: capping the number of model passes on a deep review didn't throw an error or lower a visible score, it just stopped catching a specific, rare, expensive kind of clause. The guardrail is Chancery's own held-out eval set, run on the exact clause families the deep pass exists to protect, indemnification, change-of-control, liability caps, with a floor set per clause family rather than on the overall average, since the overall average is exactly what stayed steady while the real problem grew. And the tradeoff being accepted openly: renegotiating protects trust and margin but costs an uncomfortable conversation and a real chance the customer pushes back or leaves; capping quietly protects the relationship on the surface but trades away exactly the accuracy the customer is paying for, on exactly the contracts where it matters most.

And if you want to be sure it really works, try it somewhere else

Same four letters, a veterinary hospital chain instead of a private equity firm, and this time the cost that got out of hand wasn't a deeper review mode, it was sheer image volume.

Greavesend is a diagnostic imaging tool built for veterinary radiology. A vet uploads an X-ray or an ultrasound scan, and Greavesend flags likely fractures, masses, and soft-tissue abnormalities before the vet writes up the read. Hosea Callas is the finance partner who signed off on what it costs to run.

The build-up: Hollins Veterinary Group, a regional hospital chain, signed Greavesend's enterprise tier at a flat $22,000 a month for up to 3,000 scans, a limit nobody expected them to hit. Hollins acquired six more clinics inside a year and scan volume climbed to 11,000 a month. Greavesend's real cost to serve them climbed from about $4,100 a month to $31,000, while the contract stayed exactly where it was signed.

The decision Hosea would take back Rather than renegotiate, Hosea's team first quietly throttled scan processing during Hollins's peak hours to a slower, cheaper model tier, reasoning that a few extra seconds per read wouldn't matter to a busy clinic. It held up fine for routine reads. It didn't hold up for one overnight emergency scan that needed the faster, more accurate tier and instead sat in a slow queue for four extra minutes during an active surgical decision, a gap a vet noticed and escalated hard.

Same rank as before, different lever: for Chancery, the account went unprofitable because the mix of work shifted toward a genuinely more expensive task. For Hollins, nothing about the task changed at all, sheer volume just outgrew a hard cap nobody had priced past. When Greavesend's engineers throttled speed instead of raising the question of price, the customer felt it exactly once, at exactly the worst possible moment, with no warning that it was even a lever being pulled.

Swap the trigger and it still runs.
Speed: an interviewer caps you at ninety seconds. Skip straight to it: bring the customer the real numbers and renegotiate before you quietly change what the product does for them, and know your walk-away number before the call, not during it.
Cost: there's no budget this quarter for both a full renegotiation process and a faster engineering fix. The renegotiation wins for Chancery specifically, because a quietly degraded legal redline is a liability problem, not just a slower support ticket.
The model got better, for real: say the underlying model gets twice as cheap to run next year. That's not proof the account stops needing attention, since a customer's usage pattern can keep growing faster than any one model's price drops, and the habit of watching cost against a flat price still has to exist either way.

Where people run it wrong.
They treat "the customer is losing us money" as a reason to quietly change the product, instead of a reason to have an honest conversation with the person paying for it.
They set the walk-away number during the negotiation, under pressure, instead of before it, so it always gets talked back down by whoever wants to keep the logo.
They watch the overall accuracy average after a cost-saving change instead of the one rare, high-stakes case family the change actually touched.

How to use it live. Say the real question out loud before naming a number: "before I answer, is the account unprofitable because the customer's business genuinely changed shape, or because we priced it wrong from day one." That buys a beat to think, and it changes whether renegotiation or a pricing fix is really the first move.

Flashcards (tap any card to flip it)

1 · THE FRAMEWORK
What framework is this, and what's its one job?
Tap to flip
ANSWER
PICK: commit to a position, then show the asymmetry. Built for tradeoff questions, not a story about one person's habit.
2 · THE PERSON
Who is this answer about?
Tap to flip
ANSWER
Thea Coyne, the PM who owns Denhurst Capital's account at Chancery. Owned the account since the contract was signed.
3 · THE QUIET HABIT
What did Thea do first, before renegotiating, that felt safe at the time?
Tap to flip
ANSWER
Quietly capped the deep due-diligence review at two model passes instead of the adaptive number it needed, to bring the bill down without the awkward pricing call.
4 · THE POSITION
What's the actual position this answer takes?
Tap to flip
ANSWER
Renegotiate against real usage first, before capping the product quietly or walking away. Only walk away if the customer won't move and losses keep growing.
5 · THE OLD DECISION
What decision would Thea take back?
Tap to flip
ANSWER
Capping the deep review quietly instead of picking up the phone. Capping under real pressure is a fair trade some quarters, doing it without telling the customer is what she'd take back.
6 · THE NUMBER
Fill in the blank: the flat price covers real cost up to about ___ deep due-diligence reviews a month. Denhurst was running about 90.
Tap to flip
ANSWER
About 43 deep reviews a month. Past that line, every extra deep review the account runs loses Chancery money, and Denhurst was running more than double it.
7 · THE REPLAY
Same near miss, new design, what changes?
Tap to flip
ANSWER
The renegotiation happens openly in month two, once burn crosses $18,000 for two months running. The two-pass cap never ships, the change-of-control clause gets its full review, and the account is profitable again by month three instead of six weeks late and $23,000 further in the hole.
8 · CROSS-PRODUCT TRANSFER
Section 4 answers this same question again for a different product. Which product, and what actually made the account unprofitable?
Tap to flip
ANSWER
Greavesend, a veterinary imaging tool used by Hollins Veterinary Group. There, nothing about the task changed. Sheer scan volume just outgrew a hard cap nobody had priced past.

Check yourself Score: 0 / 0

Multiple choice
1. Why did Chancery's account with Denhurst Capital go from profitable to losing about $23,200 a month?
  • A. Chancery's own model provider raised its prices partway through the year.
  • B. Denhurst's contract volume tripled and shifted heavily toward the much more expensive deep due-diligence review mode, while the contract stayed a flat, unlimited monthly price.
  • C. Denhurst switched to a competitor's contract management system for part of its workflow.
  • D. Chancery's legal team stopped double-checking the tool's redlines.
Show hint
Look at "The turn" paragraph in Section 1.
Show answer
B. Volume climbed from 40 to 260 contracts a month, and the mix shifted hard toward the deep due-diligence pass, which costs about seventeen times more per contract than a standard review.
Fill in the blank
2. A standard contract review cost about $___ to serve. A deep due-diligence review cost about $___.
Show hint
Look at the "Cost, by the numbers" chart in Section 1.
Show answer
$20, and $350. The deep review costs roughly seventeen times more per contract, which is what turned a healthy account into a losing one once Denhurst's mix shifted toward it.
True or false
3. True or false: because Chancery's overall clause-tagging accuracy stayed roughly steady after the two-pass cap shipped, the cap was safe for every kind of clause it handled.
  • True
  • False
Show hint
Check what the eval set showed once Thea ran it specifically on change-of-control and indemnification clauses.
Show answer
False. Accuracy on change-of-control and indemnification clauses fell from about 93 percent to about 68 percent under the cap. The overall average barely moved because those clause types are rare, which is exactly why nobody watching the average caught it for six weeks.
Short answer, name the rejected alternative
4. What alternative did Thea's team seriously consider instead of renegotiating with Denhurst, and why did it lose?
Show hint
Look at the paragraph right after the framework recap's four steps.
Show answer
Model answer: Walking away from the account immediately once the burn crossed $30,000 a month, without attempting a renegotiation first. It lost because Denhurst hadn't done anything wrong, they were using exactly the product they were sold at exactly the depth they were promised, and Chancery's own flat pricing model was the thing that hadn't kept up with how they'd started using it.
Multiple choice
5. Chancery and Greavesend both had an enterprise account go unprofitable. What's genuinely different about what caused each one?
  • A. Greavesend's account never actually lost money, only Chancery's did.
  • B. Chancery's account went unprofitable because the mix of work shifted toward a genuinely more expensive task. Hollins's account went unprofitable because sheer volume outgrew a hard cap, with the task itself never changing.
  • C. Both accounts became unprofitable for the exact same reason, a shift toward a more expensive task type.
  • D. Hollins Veterinary Group's problem was a change in who owned the account internally, not a cost problem.
Show hint
Look at "Same rank as before, different lever" in Section 4.
Show answer
B. Denhurst's contracts got harder, on average, to review. Hollins's scans stayed the same kind of work, there were just far more of them than the flat price ever priced for.
Short answer, apply it yourself
6. Pick an AI product you use or know of that's sold on a flat subscription price with no real usage cap. Name one way a single customer's usage could quietly grow past what that price was ever meant to cover.
Show hint
Think of a product priced as "unlimited" that has a real, variable cost behind each use, a design tool, a coding assistant, a customer support bot.
Show answer
Model answer: An "unlimited" AI coding assistant priced per seat. A team that starts asking it to review entire legacy codebases instead of single functions is running a far more expensive task per request than the price was ever built around, even though their seat count never changed.
Before you close the answer
Why this works
Tests whether you'll have the honest, uncomfortable conversation with a losing account, or quietly change the product instead and hope nobody notices. Most candidates jump straight to "cap it" or "cut them loose" without naming what either one actually costs.
Follow-up traps
"Isn't renegotiating risky, what if Denhurst just leaves?" Response: that's exactly what the kill criteria step is for. If they refuse to move and losses keep growing, walking away is the right call, that risk is priced in, not avoided.

"Couldn't you just quietly throttle usage instead of having the awkward call?" Response: no, that's the exact choice that caused the near miss in Section 1. A quiet cap looks free on the invoice and costs the customer an accuracy drop they don't find out about until it's already expensive.
If pressed
The renegotiated pricing wasn't a blanket rate hike. It was a usage-based add-on that only applied above Denhurst's original 40-contract baseline, so routine months stayed at the original flat price and only the acquisition-spree months cost more, which is what got Denhurst to agree inside a week instead of escalating the whole relationship.
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