The person who embodies the role

Organisations are designed as roles: head of operations, clinical lead, consultant, finance director. Every role is a promise about what the organisation will get. But a role never delivers anything. A person does — and the same role, filled by two different people, produces two different organisations.

A company cannot want anything; only its people can. This page is the other half of that idea: what makes one of those people count. Not their title, not their suit, but three things underneath it that can be tested, and faked.

Start with the suit, because it matters more than we like to admit. A suit, a title, a certificate on the wall — these are signals. Economists have a precise idea of what a signal is worth: it carries information only when it is costly to fake. A degree signals ability partly because it is hard to obtain without it. A title signals authority because someone senior had to grant it.

Signals decay. Once a suit can be bought by anyone and a title is handed out for tenure, they stop telling you anything. An organisation full of impressive-looking people who cannot fix a process is one where the signals have detached from the substance. So look past the suit, to what it is supposed to stand for.

Knowledge is understanding how something works — and, more importantly, how it is supposed to run when it is run right. You cannot see waste in a process until you know what the process should look like without it. That is why I collect degrees: not for the paper, but for each field's definition of "done properly".

Knowledge has a counterfeit: vocabulary. Someone can hold every term of Lean Six Sigma without being able to walk a process and find the queue. One test separates them — ask for an explanation a person with no background could follow. Real knowledge survives translation into plain words. Vocabulary evaporates.

Experience is knowledge that has been tested against reality and adjusted. It is why the same method in two people's hands produces different results. There is real mathematics behind how it accumulates — the learning curve, first measured in aircraft factories in the 1930s:

$$y=a{x}^{-b}$$

In plain words: the effort a task takes ($y$) falls as the number of times you have done it ($x$) rises — fast at first, then slowly. Each doubling of repetitions cuts effort by the same percentage. The tenth process you map teaches you far more than the hundredth. That shape explains why a genuinely experienced person is worth so much more than a trained one in the early years — and why "twenty years' experience" is sometimes one year repeated twenty times. The curve only keeps falling if the repetitions bring new problems.

Experience's counterfeit is seniority. Time served is easy to count; lessons learned are not. Do not ask "how long have you done this?" Ask: "tell me about the one that went wrong, and what you changed afterwards." Real experience has scars and an answer. Seniority has a date.

Knowledge and experience live inside one head. Influence is the only one of the three that reaches into other people — and it decides whether an improvement survives the person who designed it. A brilliant analysis nobody acts on has an influence of zero.

Influence is often confused with authority. Authority is granted by the role: the right to instruct. Influence is granted by other people: the willingness to be instructed when they don't have to be. The test is simple and slightly brutal — does behaviour change when this person is not in the room? Authority stops at the door. Influence keeps working after it closes.

Its counterfeit is charisma: the ability to make a room agree for an hour. Charisma produces enthusiasm; influence produces a changed procedure still being followed six months later. Measure the six months, not the hour.

A person embodies a role well when all three line up. But when one person embodies it too completely — when the process only works because they are there — the organisation has not built capability; it has built a dependency. Engineers call it the bus factor: how many people would have to be hit by a bus before the work stops. A bus factor of one is a process at rest in somebody's head.

The whole point of the method, and its last chapter, is a process that stays in control after I've gone. The best man in the suit is the one whose knowledge has been written down, whose experience has been taught, and whose influence has become simply the way the place runs — so that, eventually, the suit is optional. If the role cannot outlive the person, you have a hero, not a system. Heroes are a single point of failure.