 Gintis (2009a)  argues that when we set out to use evolutionary game theory to unify the behavioral sciences, we should begin by using it to unify game theory itself. We have pointed out at several earlier points in the present article that NE and SPE are problematic solution concepts in many applications where explicit institutional rules are missing because agents only have incentives to play NE or SPE to the extent that they are confident that other agents will do likewise. To the extent that agents do not have such confidence — and this, by the way, is itself an insight due to game theory — what should be predicted is general disorder and social confusion. Gintis shows in detail how the key to this problem is the existence of what he calls a ‘choreographer’. By this he means some exogenous element that informs agents about which equilibrium strategies they should expect others to play. As discussed in  Section 6,  cultural norms are probably the most important choreographers for people. Interesting utility functions that incorporate norms of the relevant sort are extensively studied in  Bicchieri (2006).  In this context, Gintis demonstrates a further unifying element of great importance: if agents attach positive utility to following the choreographer’s suggestions (that is, to being strategically correlated with others for the sheer sake of it), then wherever competing potential payoffs do not overwhelm this incentive, agents can also be expected to consistently estimate Bayesian priors, and thus arrive at equilibria-in-beliefs, as discussed in  Section 3.1,  in games of imperfect information. Finally, as discussed in  Section 5,  Conditional Game Theory promises to provide the resources for modeling the endogenous emergence of the choreographer within the dynamics of games.