It has definitely been a spectacular fall for a dude who used to score 30 a game. But I think some aspects of his game would translate well to a broken body and/or bad knees. Even a hobbling McGrady would still be an asset to a team as a shooter off the bench. Granted, that would be one hell of a step down in roles, but given how the Rockets have played without him the last couple years, maybe it'd be for the best.