²⁴ D. Hambrick. (1994). “Top management groups: A conceptual integration and reconsideration of the team label,” In B. M. Staw and L. L. Cummings (Eds.) Research in Organizational Behavior. Greenwich, CT: JAI Press. p. 172. Hambrick offered this acknowledgment one decade after launching the “upper echelons” literature, which focuses on the effect of top management team composition on strategic choices and organizational performance. See D. Hambrick and P. Mason. (1984). “Upper echelons: The organization as a reflection of its top managers,” Academy of Management Review. 9: pp. 193–206.