TMT demographic heterogeneity reflects cognitive heterogeneity in that top managers with different demographic backgrounds can enhance TMT innovativeness (Bantel & Jackson, 1989), problem solving abilities (Nemeth, 1986), information diversity (Wiersema & Bantel, 1992), and openness to change (Glick, Miller, & Huber, 1993). Yet, TMT demographic heterogeneity can be detrimental to TMT social cohesion because demographic heterogeneity can increase social conflict (Amason, 1996; Amason & Sapienza, 1997; Barsade et al., 2000; Ferrier, 2001) and coordination costs (Pfeffer, 1985; Smith, Carson, & Alexander, 1984), reduce communication frequency (Roberts & O' Reilly, 1979; Wagner, Pfeffer, & Oreilly, 1984), and harm group cohesiveness (Ancona & Caldwell, 1992; Zander, 1977).