[zaidf]

Just because you have one person who makes the final call does not mean he isn't reliant on other members of his team.

The way Gates describes his process resonates with me:

In terms of deciding what programs are going to do, a fairly large group makes suggestions. Then there’s a filtering process. Eventually I’ll decide which of the ideas makes sense, and I’ll make sure we have champions who are personally involved in making that product succeed.

http://programmersatwork.wordpress.com/bill-gates-1986/