Yeah, they wouldn't likely pick Rubio to keep him, but they can trade down with us and get something extra. So, OKC would be better trade partners than Memphis because we can whoever OKC would truly like to have. However if Memphis takes Rubio (which IMO is still the likely scenario) it will be much harder for us to work a deal because Thabeet seems to be their favorite alternative to Rubio and OKC likely snatches him up before our pick. I doubt they trade Rubio for Jordan Hill and some late picks, they may rather want the 4th as well as one our young bigs or future first round picks.
With the possibility of Rubio simply going back to Spain and playing out his contract, I don't think Oklahoma or Memphis is in any position to hold up anyone. I would think that if Rubio wants to pull out of the draft, then some kind of deal would have to be worked out prior to the pull out date. If he withdraws from the draft, then I guess we can assume that someone wasn't willing to deal. By the same token, if he stays in the draft, it may be a sign that a deal has been worked out.