I think he can still play center. At least he avoids making too many bonehead plays out there. I always thought he'd develop the ability to steal bases more than he has... that might be his biggest problem. He's hardly been able to push being a 10/10 guy. But he does hit doubles and triples. Our offense definitely went down a notch without him.
I won't even acknowledge the tripe that is your last statement.
If you mean behind Greinke, Crow, and Mazzaro, then sure.