Why behavioural patterns spread through organisations.
Patterns are not personality traits held by many people. They are local adaptations that turned out to work.
Adaptations, not defects
Every named pattern started as a sensible response to a real condition. Concentrating hard problems on the most capable person is efficient in a crisis, and remains efficient for exactly as long as the crisis lasts. Withholding a concern is rational where raising one has previously been costly. These are adaptations, not defects, and the distinction matters because a defect is fixed by correcting the person and an adaptation is fixed by changing the condition it adapted to.
This follows a much older argument in social psychology: behaviour is a function of the person and the situation together, not the person alone (Lewin 1951). A pattern that looks like a character trait from the outside is frequently the same situational pressure producing the same response in whoever happens to occupy that position. Move a different person into the role and, more often than a trait-based account would predict, the pattern persists.
The same logic explains why a pattern often outlasts the crisis that produced it. An organisation that once needed its most capable person to absorb every hard problem, and rewarded them for doing so, will keep steering new hires towards that same person long after the crisis has passed, because the reward has not changed even though the reason for it has (Kerr 1975). The pattern is not stubbornness on anyone's part. It is the system still pointing where it always pointed, because nobody has repointed it.
One postponed decision, made once under real pressure, teaches everyone who watched it that postponing is an acceptable response to pressure. Nobody wrote that lesson down, and nobody meant to teach it, but it is transmitted all the same, and it will be reproduced by someone else the next time the pressure recurs, whether or not the original circumstances that justified it are still present.
Why patterns outrun policy
They spread because they are observed and copied, which is a faster transmission mechanism than either policy or training. New people read the room and behave accordingly, well before any policy reaches them, or any onboarding session explains what is formally expected. Watching a colleague successfully raise a concern, or successfully cut a corner without consequence, changes a bystander's belief about whether they could do the same, and that belief predicts whether they try (Bandura 1977). People also take their cue for correct behaviour from what others around them are visibly doing, largely independent of what they are formally told (Cialdini 2001), and that pressure can be strong enough to override direct evidence: in Asch's experiments people went with a unanimous group against plain visual evidence on roughly a third of critical trials, with about three-quarters conforming at least once — and stayed independent the rest of the time (Asch 1956).
Watch what a new hire asks about in their first week, and what they have stopped asking by their fourth. Early on, almost everything is a stated question: what the deadline is, who signs off, what the template looks like. By the fourth week, most of that has become assumed, learned not from a document but from watching what actually happened the two or three times a similar question came up. Nobody sat them down to teach the assumption. They absorbed it the way anyone absorbs a norm that is never written down but is enforced constantly, in small and mostly unremarked ways.
A new joiner does not need anyone to instruct them in a pattern. They only need to watch what is rewarded and what is quietly tolerated.
The most consequential version of this is groupthink: a cohesive group can suppress its own doubts so thoroughly that the suppression is invisible from inside the group, and dissent gets read as disloyalty rather than as information (Janis 1972). Janis built that account from retrospective case studies rather than controlled tests, and the cohesion mechanism he proposed has held up poorly in the laboratory; what has held up is the observation itself. Nobody instructs a team to stop disagreeing. Each member learns it independently, from watching what happened the last time someone did, and the lesson is transmitted faster than any of the meetings meant to encourage the opposite.
There is a reinforcing loop once a pattern has spread widely enough. Beliefs bend to fit behaviour as well as the other way round, particularly where the person feels they chose the behaviour freely (Festinger 1957). A newcomer who initially copies a pattern out of simple observation can, within a few months, sincerely believe it is the right way to work, which makes the pattern considerably more resistant to challenge than it was when it first appeared, because it is no longer just a habit. It has become a conviction.
Where culture actually sits
This is also why culture is a poor place to start an intervention. Culture can be treated as a layer of assumptions sitting below anything anyone says out loud, visible only in what people actually do (Schein 2010) — which makes it a record of which patterns have been copied successfully over time, rather than a lever that can be pulled on its own. Trying to change 'the culture' directly, without changing what is observable day to day, is trying to edit the summary without touching the material it summarises.
This is why culture initiatives so often produce a new set of posters and very little else. A statement of values sits at the level of the summary; the behaviour someone actually copies from a colleague sits underneath it, unaffected. Two organisations can publish an identical values page and produce opposite patterns, because the page was never where the pattern was being transmitted from in the first place.
Addressable because it is visible
That is also why patterns are addressable. A pattern sustained by observation can be changed by changing what is observable, which is a considerably smaller intervention than trying to change what people are like. This is consistent with how trust itself has been modelled: not as a single feeling but as three perceptions of trustworthiness — ability, benevolence and integrity — feeding a separate willingness to be vulnerable (Mayer, Davis & Schoorman 1995). Each of those perceptions is built from behaviour that was seen, not from a stated intention, which is the same logic that makes a pattern addressable in the first place. Change what is seen, and the inference built on it changes too, without anyone having to be persuaded of anything directly.
The mechanism is better evidenced than the remedy. That patterns spread by observation is not seriously disputed. That naming one reliably slows its spread is a working assumption, and we hold it as one.
In our framework, that is the whole premise: name the pattern precisely enough that it can be recognised while it is happening. Naming does most of the work that exhortation cannot, because a pattern that has a name can be pointed at while it is happening, rather than only discussed afterwards in the abstract.
The research library lists the published work this draws on.