When a high performer stops performing at the level that got them there, the default explanation is skills. Something is missing — a capability, a behavior, a competency. The intervention follows the diagnosis: development programs, coaching on specific behaviors, feedback cycles. Sometimes this works. Often it doesn't, because the diagnosis was wrong.
There are three distinct things that look like a plateau from the outside. The first is a genuine skill gap — the role has outgrown what the person currently knows how to do, and the fix is learning. The second is a fit problem — the role no longer matches where the person is headed, or what they actually want, and no amount of skill development will resolve a mismatch that runs that deep. The third is an identity problem — the person is in a transition between one version of themselves and the next, and the disorientation of that transition is being read by everyone, including sometimes the person themselves, as underperformance.
These three things require different responses. A skill gap calls for development. A fit problem calls for a direct conversation about whether this role is the right next chapter, regardless of whether the person is good at it. An identity transition calls for a different kind of support entirely — not instruction, not feedback, but space to work through what is actually changing and what needs to be built in its place.
The reason these get conflated is that they look similar from outside, and the skill-gap frame is the most comfortable one to apply. It is concrete, actionable, and does not require anyone to raise harder questions about whether the person is in the right role or in a genuine developmental crisis. Organizations are understandably reluctant to go there. But applying development to a fit problem or an identity transition tends to make things worse — it adds pressure and activity to a situation that needs clarity and space.
The question worth asking of any plateau is not what skill is missing, but what is actually happening to this person in their professional life right now. That question requires a different kind of assessment — one that looks at where the person is in their career arc, what the role is asking of them developmentally, and whether what looks like underperformance is actually a signal that something deeper needs to reorganize.
Getting that question right before choosing an intervention is most of the work.