I've been thinking about this option too. Someone stated that Wall and Kemba are the same caliber of defender, and i disagree. Wall is 6'3" with a 6'9" wingspan. Kemba doesn't come close to this. When those Wizards teams were in the playoffs Wall was a great perimeter defender. I would miss Kemba's shooting, but I think Wall's defense, passing, and penetration skills would give him the nod. It would be a gamble, but it's one i would take.