The Spurs need their heralded depth to do something useful for them. The supposed strength of their team hasn't done anything since Game 2, with the possible exception of Stephen Jackson. Gary Neal, in particular, puts up shot after ill-advised shot, none of which come within the flow of their offense. I'd consider benching him, instead moving Manu back to the 6th man role as the backup point when Parker is out.
The more they play iso ball, the easier it is to shut them down. They need to get back to team ball and precise execution if they want to win Game 6.