Seems to me like Harrison Barnes has been placed in the same tier nationally as Beal, Robinson, MKG, and Drummond--so whichever one of those 5 is still on the board when we pick is who we should take. Unless that player is Drummond, in which case we should trade the pick (to Houston?), because I don't like him.
With 11, I think we should take the best guard available, because I don't really like any of the forwards/centers projected to go in that range (Zeller, Leonard, Sullinger, T-Jones etc.)--unless Perry Jones has dropped, in which case you grab him and hope for the best.