Have you ever row in a quadruple scull’s? in a 20 paddlers dragon boat? Efficiency is not a matter of individual strength, it’s mostly a matter of synchronization!
And for that, team have to be organized … why? to follow a common objective! that’s the definition of a team. That’s why hierarchical organization had been so successful: it obliged a single base! But it’s maybe not optimal …
Look at open source projects, really, look at that (CK, thanks for the link)!