Brad Stevens knows just what to do with a talent like Kemba. It starts with a steady dose of ball screens. Small and smart, he likes to refuse the screen (not use it) and see if he can zoom to the rim in a direct line. It’s very difficult to guard him when he zooms like that, and Stevens puts him in a position to do it often. He also uses Kemba to shoot off screens. Guarding Kemba has gone from difficult to nearly impossible. Think of it like this: When running through screens as a dribbler, Kemba may be the only Celtic that touches the ball during that possession. But when he is used as a shooter off screens, at least two players “get a touch” of the ball, and all three players are involved: the passer, the screener, and then Kemba.