I watched all of OKC's playoff games, to me, they played better against Den when Perk wasn't out there... especially when Ibaka was in. People are giving Perk way too much credit for Ibaka stepping his game up because when Perk is out of the game (he only get's like 24) who do you give Ibaka's great playing cred to, the other center out there? I think the OKC defense is so good because of Ibaka (his minutes and he is now the starter), if Ibaca goes down... OKC would not have beaten DEN! If it's because of Perk couldn't you just exchange any 4 for Ibaka and get the same results? Yes, you can put in their other center and get similar (better to me) results as if Perk was in, I have seen that when Perk sits! Now, when OKC faces a slower opponent then the play of Perk would/should be more vital.