Roddick doesn't have "it". The "it" that makes a great champion. I think it is a combination of desire, will power, and a satisfaction with being where he's at right now...second tier, with everybody else ranked higher than #2. The way he lost this wimby has convinced me he just doesn't really want it as bad as the other guys. You really have to love to battle if you're gonna be a good returner...especially competing with these two guys running the show.
I still don't understand how a guy can develop a serve like his, and also not develop much of a volley game behind it. I used to blame the people around him, the people who had a hand in his development, and even racquet technology...but now, I just think he is lazy.