Small teams can still segregate
Deliberate assignment and owner review work even with very few people.
Volume 11, Chapter 2
Segregation of Duties
If one person can both make a mistake and be the only one who'd ever notice it, the duties aren't segregated yet.
The Golden Rule
No single person should both create a loss and hide it.
Split any complete transaction across at least two people. It's the single most powerful internal control this manual teaches.
OrdersDecides what to buy, from whom.
ReceivesConfirms goods actually arrived correctly.
PaysReleases the money.
Paper vs practice
A "second reviewer" who approves without checking segregates in name only.
Revisit as the team grows
Gaps unavoidable at two people should close at three.
Highest-risk first
Cash and payments before, say, ordering office supplies.
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Definition
Imagine one trusted employee both places fabric orders and approves the payments for them, simply because the team is small and it's convenient. Nothing goes wrong, for a while. But the moment a business grows enough to hire a second person for the role, splitting those two jobs apart costs nothing and closes a gap that was never actually tested. Convenience and safety aren't the same thing, and a small team quietly trades one for the other more often than it realizes.
Segregation of duties
means splitting any complete transaction across at least two different people, so that no single person can both create a loss and hide it. It is the single most powerful internal control this manual teaches, most fraud stories in this manual trace back to its absence.
In One Sentence
Any transaction has natural stages, deciding, doing, checking, recording. If one person controls every stage alone, a mistake or dishonest act has no independent check. Split the stages across different people, and every stage becomes a check on the one before it.
2
The Purchase Triangle
The classic example, buying something, splits into three roles:
Orders
Decides what to buy, from whom. Risk alone: could order from a favoured (or fictitious) supplier.
Receives
Confirms goods arrived, in the right quantity and quality. Risk alone: could claim goods arrived when they didn't.
Pays
Releases the money. Risk alone: could pay for goods that were never actually received.
| Role | Job | Risk If the Same Person Holds All Three |
|---|---|---|
| Orders | Decides what to buy, from whom | Could order from a favoured (or fictitious) supplier |
| Receives | Confirms the goods actually arrived, in the right quantity and quality | Could claim goods arrived when they didn't |
| Pays | Releases the money | Could pay for goods that were never actually received |
Held by three different people, each stage checks the one before it: the receiver won't confirm goods that never arrived; the payer won't release money without a receiving confirmation. This exact structure underlies Volume 12's procurement process (planned).
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Applying the Same Logic Beyond Purchasing
| Process | Split Across |
|---|---|
| Payroll | Who calculates it is not who approves and releases it (Volume 07, Chapter 9) |
| Cash handling | Who counts the till is not who checks it against the records (Chapter 3) |
| Bank payments | Who requests a payment is not who gives the final go-ahead (Volume 07, Chapter 8) |
| Inventory | Who orders stock, who counts it on arrival, and who records the count are three different people |
Memory Trick
If one person can both make a mistake and be the only one who'd ever notice it, the duties aren't segregated yet.
4
When a Small Team Makes This Hard
The most common objection: "We only have three people, we can't segregate everything." True segregation doesn't require large teams, it requires deliberate assignment:
| Small-Team Approach | How It Still Works |
|---|---|
| The owner personally reviews anything a two-person team can't fully segregate | The owner becomes the second check, at least periodically |
| Rotate who performs a task, with the other person spot-checking afterward | Imperfect but far better than one person holding permanent, unchecked control |
| Reserve full segregation for the highest-risk processes first | Cash and payments before, say, ordering office supplies |
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Example Story: The Segregation That Almost Wasn't
Here's the full version of the fabric-orders story from the start of this chapter.
Early on, one trusted employee at MANIAC MINDZ both placed fabric orders and approved supplier payments, a convenience of a small team, not a deliberate decision. Nothing went wrong, but when the business grew enough to hire a dedicated storekeeper, the roles were deliberately split: the storekeeper now confirms receipt, while a separate person authorizes payment. The change cost nothing and closed a gap that had simply never been tested. That gap was precisely the kind of "opportunity" Chapter 1's fraud triangle warns about, closed before it was ever exploited.
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Across Industries
Golden Crust Bakery
Segregation worth buildingThe baker who counts flour stock shouldn't be the same person who orders more
Bright Path Academy
Segregation worth buildingThe person collecting school fees shouldn't be the same person reconciling the bank deposit
Green Fields Farm
Segregation worth buildingThe person negotiating the harvest sale shouldn't be the sole person confirming the amount received
| Business | A Segregation Worth Building |
|---|---|
| Golden Crust Bakery | The baker who counts flour stock shouldn't be the same person who orders more |
| Bright Path Academy | The person collecting school fees shouldn't be the same person reconciling the bank deposit |
| Green Fields Farm | The person negotiating the harvest sale shouldn't be the sole person confirming the amount received |
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Common Mistakes
Common Mistake #1: Assuming a Small Team Can't Segregate Anything
As Section 4 shows, deliberate assignment and periodic owner review work even with very few people.
Common Mistake #2: Segregating on Paper but Not in Practice
If the "second reviewer" approves without actually checking, the segregation exists in name only.
Common Mistake #3: Never Revisiting Segregation as the Team Grows
As the example story shows, gaps that were unavoidable at two people should be closed the moment a third person is available.
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Quiz Yourself
Quiz 1
What does segregation of duties actually prevent?
A single person both causing a loss (through error or dishonesty) and being the only one positioned to notice or hide it.
Quiz 2
Name the three roles in the classic purchase triangle.
Orders, receives, pays.
Quiz 3
How can a two-person business still practice meaningful segregation?
The owner acts as the second check on processes that can't be fully split, or duties are rotated with spot-checks, imperfect, but far better than one person holding permanent unchecked control.
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Practice Exercise
Map your three highest-value business processes (e.g., purchasing, payroll, cash handling). For each, name who currently holds each stage. Where one person holds every stage, decide this week how to split it, even imperfectly.
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Quick Summary
Quick Summary
- Segregation of duties splits any transaction across at least two people, so no one person can both cause and hide a loss.
- The classic purchase triangle: orders, receives, pays, held by three different people.
- Small teams can still segregate meaningfully through deliberate assignment, rotation with spot-checks, or owner review.
- Revisit segregation as the team grows, gaps unavoidable at two people should close the moment a third is available.
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