I didn't realize Young was only 22. As already mentioned, his knock is he is a tweener.
He is a RFA with a qualifying offer of $3.99M.
http://sports.espn.go.com/nba/news/s...eeAgents-10-11
http://www.hoopsworld.com/Story.asp?story_id=9167
Personally, I think Green is a legit 3 and if there was a choice I would go with Green. Playing out of position and initially in Durant's and now Durant's and Westbrook's shadow, Green has not shown how good he can be.
Also, OKC just resigned Collison to an extension and they have Ibaka. I think this may be another sign Green's future might not be in OKC.