If the Spurs can close out the WCF, I think we'll see OKC go into the tax next year. Simply put, they don't have enough to get over the hump (mostly due to coaching, but still, their depth is terrible). They'll need to add an MLE-caliber player to their rotation, but none of the realistic MLE available are wings of Sef's mold. I think they'll probably try to sign the best big that they can and keep Thabo in his role. Things could chance in the draft of course, but as of now, that would be their best strategy.