---
title: "Upper Echelons Theory"
type: "entity"
entity_kind: "concept"
status: "hub"
canonical_name: "Upper Echelons Theory"
aliases: []
first_seen: "2026-08-01T00:00:00.000Z"
writer_model: "claude-sonnet-5"
connects_to: ["CEO succession","top management team replacement","resource dependence theory","Hambrick & Mason (1984)"]
---


Foundational strategic-leadership theory (Hambrick & Mason, 1984) holding
that organizational outcomes — strategic choices, performance, change — are
partial reflections of the cognitions, values, and experiences of the
executives who make them, rather than of the organization acting as a
unified rational agent. It is the explicit theoretical scaffold Wangrow,
Schepker & Barker (2022) cite for why CEO succession alone is an incomplete
account of "leadership change": the theory predicts that *which* executives
are in the room, not just who occupies the top seat, is what should shape
strategic outcomes — the premise motivating their test of
[[entity-top-management-team-tmt-replacement|TMT replacement]] as a
mediator between succession and strategic change.

## References
- [[claim-tmt-replacement-mediation-is-conditional-on-succession-antecedent-type]]
- Captures: 10-inbox/raw/2026-08-01-verify-against-wangrow-schepker-barker-2022-full-text.md