With Camby not available for some time what about trading for DeSagana Diop. He's a guy that can protect the rim and rebound. He's also got a reasonable contract and isn't a threat to bolt after one season.
Maybe we trade Watson or Collison plus one of next years first round picks for Diop and future second rounder(s).
I don't think Presti is going to keep both picks next year. Both picks could be lottery picks and having 5 lottery picks on one team would be a headache come contract time. Using one to get the shot blocking/rebounding presence we need and then using the other to trade back and pick up a solid role player + future second rounders is the way to go, IMO.
Westbrook, Harden, Durant, Green, and Diop. I think thats a lineup that could get into the playoffs or at least contend for a playoff spot, and Diop would be a big help with Ibaka and Mullens and helping them defensively.