The bench will be fine, one of JT or Williams will go to the bench and one of Cousins, IT or Gay will always be on the floor. Staggered rotations, its what most of the good teams do, we were just filled with so many journeymen that we had to resort to mob subsitutions. You could take out Gay, Cousins or IT around the 4 minute mark, put him back in to start the 2nd, with timeouts and breaks between quarters thats a good 6-8 minutes of rest.
Also Outlaw is pretty useful as a high energy athlete with lenght that gives you 100% every minute, will hit the occasional shot also. He fits into what it looks like we are trying to build, gives effort and is pretty solid defensively too.