The inherent flaw of teamwork is that responsibility is actually atomic. As soon as you assign the same responsibility to a group of two or more persons, things will start to go wrong sooner or later. If you look more closely at successful teams of the past, you will notice that they succeeded because they actually worked as a well-coordinated group of individuals, with a clear separation of responsibilities. Ringo Starr never played the guitar, and John Lennon kept his hands from the drums. If a team is unable to assign responsibilities to its individual members, you don't get a team, you get a committee. And it is no accident that "design by committee" has a negative connotation. What you get out of a committee is not the greatest idea a single member had. What you get out of a committee is the lowest common denominator. And if that denominator happens to be low enough, you won't get any usable results at all.