Roberson is one of the best wing defenders in the league. Harden is still scoring 33 a game during the series, almost 40 prior to last game. He'll score no matter what. But they have no one who can score outside of Westbrook. Oladipo is their next best offensive player, but it's been really easy to defend him because the Rockets have one extra defender to help. I think you can live with one or two really bad defenders if they can make up on the other end, but a wing who can't shoot? That just screws up the whole offense these days. They are trying to go the post, but neither Gibson or Adams are as good as Kanter.