the Peter principle

ops culture

In a hierarchy, people rise to their level of incompetence.

Laurence J. Peter's 1969 satire observed that promotion rewards performance in the current job, not aptitude for the next one, so employees climb until they reach a role they do poorly, and stay there. Tech companies built dual career ladders largely to blunt it, letting great engineers advance without becoming managers. The satire has since accumulated empirical support in studies of sales-force promotions.

The Peter principle observes that people are promoted based on performance in their current role until they reach a level where they are no longer competent, and there they remain. Laurence Peter published it in 1969, and its bite is that the mechanism requires nobody to behave badly: each promotion is a reasonable reward for demonstrated success.

Technology has an especially clean example. The strongest engineer is promoted to manage engineers, which is a different job requiring different skills, and the organization loses its best practitioner while gaining a manager who may be uncomfortable and unsupported. The failure is structural, not personal, and blaming the individual misreads it entirely.

The correction the industry landed on is the dual ladder: a technical track with genuine seniority, compensation and influence that does not route through people management. It works when the levels are real and fails when the technical track is decorative, which is easy to check by asking whether anyone on it can affect a decision the management track disagrees with. The other half of the fix is treating management as a skill to be trained rather than a prize for having been good at something else.

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