Dysfunction is a pyramid, not a checklist

Lencioni's central structural claim is that the five dysfunctions stack on top of one another in a fixed order: absence of trust, fear of conflict, lack of commitment, avoidance of accountability, and inattention to results. Each layer is caused by the one beneath it — you cannot skip to fixing accountability while trust is still broken, because the accountability problem is downstream of the trust problem.

This is why so many team-building exercises fail: they treat symptoms in isolation. A team wondering why nobody holds each other accountable often has a hidden conflict-avoidance problem; a team avoiding conflict often has a trust problem underneath that.

The pyramid gives leaders a diagnostic sequence instead of a grab-bag of tips: find the lowest broken layer, fix that first, and the layers above it often start correcting themselves. Working top-down instead is why so many "accountability cultures" collapse into blame instead of improvement.