Horry's knack for making plays doesn't change the fact that he's not a good defender. He's historically been an above average weak side shot blocker, which doesn't mean much when he can't keep his own man from scoring when he's the 4. Elson's problem has less to do with his knowledge of the system than his inability to secure any playing time because he's the scapegoat for any defensive lapse, whether it's his fault or not. I guess Pop needs a whipping boy on the team; I wish he'd pick guys from positions of slightly less need for that job, or at least allow them to play through mistakes, like he did with Parker and Ginobili, at least once in a while.