You need to have guards that want to play defense aggressively, on a consistent basis, like Wes Mathews did here, under Stotts. We've seen GTjr. demonstrate he's willing to play it aggressively. Dame has improved and even CJ can play passing lanes fairly well, but neither are of the Type Wes was or guys like Butler, Leonard etc. The the addition of Ariza has helped much like Turner D play. If Collins & Nurk return and can really D up, along the the development of Little, couple with GTjr and maybe the addition of another 2/3 defensive player (next year) I believe we will be improved big time. But Dame and CJ together back court is not an aggressive pair defensively, and probably would remain the same regardless who the coach is.