If I were Ainge, I would swing for the fences and select Jeremy Tyler. Huge upside potential/bust potential. I'd even trade up to get him if I had to.
I have this recording of stern (intentionally lower-case)in my head saying "With the 25th selection in the 2011 NBA draft, the Celtics select Jeremy Tyler from Tokyo Apache of the Japanese League."
So I would use the pick on Tyler and try to buy a 2nd rounder and select another big like Benson, Greg Smith, Jujuan Johnson, Jon Leuer or Lauvergne.
With their 2nd pick in the second round, Hopson, DeAndre Liggins, Lighty or Schumpert would be good to look as well as that guard Anderson from Richmond that they worked out.