All presidents, regardless of their political affiliation, should surround themselves with smart people. Even though the President is the commander in chief, this isn't a dictatorship, and any president should have a staff of aides to help him make difficult political decisions.
I think that the most intelligent person in Bush's cabinet is Condoleeza Rice (or as I call her, "Sister Condie"). I don't agree with her foreign policy positions, but she is one of the most intelligent people to have "served at the pleasure of the President" in recent memory.
I know she's not a good President's "man" - but you get the idea.