Harden as everyone has said is awesome when healthy. Maybe he needs a change of venue and pitching coach to help him keep healthy.
On that note, none of the 3 B´s, maybe Bowen, but Buscholz and Bard have a very hi ceiling, with Bard possibly being a cy young type. Cerrano Id send there way, Im not sure who in the minors tho, Murphy yes if they wanted him, no Ellsbury, Hansack yes(his value probably wont get too much higher after his performance in AAA so far), But as long as we dont send our top 10 prospects there way I wouldnt mind seeing him in the rotation...