Steven Adams? Perry Jones? Jeremy Lamb? Primarily Steven Adams though. The rationale behind why this trade might work is that OKC might not want to wait for Steven Adams to develop. After all, they're a contender right now. We're 4 years behind OKC and have a few years before we reach that level. Giving them Varejao gives them a high-level player who can defend, pass, rebound, and set picks well while being fairly effective on offense without needing the ball in his hands much at all. Throw in Zeller if need be.