Ummmm no. Many aspects of Roddick's game are not that impressive. He is living proof that the serve is still far and away the most important shot in tennis. The skills are NOT there. A fact that Fed, Nadal, Murray, Gasquet, and countless others have shown us over the past few years.
I am the biggest Roddick fan/supporter/defender around. But he needs alot more than belief to get back to #1. He needs an act of God.
Lets look at his other skills:
Forehand-outstanding. One of the best in the game.
Backhand-improved alot, was decent before, now even better.
Net play-improved alot, shaky before, now more solid.
Movement-when he is fit he moves pretty well.
Return of serve-he fights hard and gets alot of returns back I find.
Mental game-very strong, a good fighter
He does have diverse enough skills. He has a great forehand, and is pretty good at everything.