C-? Well that's being tough! But I'd have to disagree.
Pujols has to be an A (especially if you are rating career)
Kendrick is at least avg (C) maybe a B if he hits like he did in 2011.
Aybar is at least a B (under rated by most Angel fans IMO). Gold glove defense with. 290 avg anreat baseball instincts. Plus good power for a shortstop
Callaspo is a C, above avg defense, maybe a little below avg hitter, for a 3B. But his OBP. And contact help. Poor instincts and base running hurt.
Of course that's just my opinion and I could be wrong!