Teamwork within open network collaboration suffers from the “tragedy of the commons” problems, particularly free-riding and low contributions. This is why it is today limited to collaboration through intermediation and contracting, which protects the exchanges of value. The mentioned problems are amplified by a lack of familiarity, coordination and trust issues, unclear motivation, nontransparent incentives, and untrusted reputation. Team collaboration is akin to a voluntary contributions game. We know from rich experimental evidence that contributions in voluntary contributions games decline by roughly half every ten to twenty rounds, especially if new teams are formed each period. To address those challenges, we need a coordination function for interdependent collaboration, a mechanism that deals with problems of coordination, motivation, and incentives, availability, familiarity, and reputation.