The problem with dream teams

A lot of brilliant thinkers in one room, faced with a very uncertain situation, are likely to disagree with each other.  And fight for power/their ideas.  It's already started with Obama's economics team:

Paul Volcker has grown increasingly frustrated over delays in setting up the economic advisory group President Barack Obama picked the former Federal Reserve chairman to lead, people familiar with the matter said.

Volcker, 81, blames Obama's National Economic Council Director Lawrence Summers for slowing down the effort to organize the panel of outside advisers, the people said. Summers isn't regularly inviting Volcker to White House meetings and hasn't shown interest in collaborating on policy or sharing potential solutions to the economic crisis, they said.

I've heard some argue that Obama would be off with one brilliant economist, rather than the five or more he's got--it would clarify the policymaking process, and cut down on the time wasted on internicene squabbles.  The problem is, which one?