Dallas Mavericks: And now starting at center for the Dallas Mavericks . . . Antoine Walker. "The question is: Can we defensively do better with our guys than they can with a mismatch? And I think we can," Mavs owner Mark Cuban said in the Dallas Morning News. "Having Antoine Walker being guarded by a 'big' like that, a center, we exploit it every time." Even opposing coaches are agreeing. "He gives them some size," San Antonio coach Gregg Popovich said. "It's not just that he's out there on the floor. He's inside, he's going to the offensive board, he's taking it to the hole, he's posting up. It's another dimension they didn't have. I thought he did a real good job."