What matters most to collaboration is not the personalities, attitudes, or behavioral styles of team members. Instead, what teams need to thrive are certain “enabling conditions.” In our own studies, we’ve found that three of Hackman’s conditions—a compelling direction, a strong structure, and a supportive context—continue to be particularly critical to team success. In fact, today those three requirements demand more attention than ever. But we’ve also seen that modern teams are vulnerable to two corrosive problems—“us versus them” thinking and incomplete information. Overcoming those pitfalls requires a fourth critical condition: a shared mindset.