Reportedly, a draft promise from Ainge is what made Kendrick Perkins enter the NBA draft as a teenager rather than play for John Calipari at the University of Memphis. He
kept a second round promise to Orien Greene despite Amir Johnson falling. There were rumors that Ainge may have made a promise to Monta Ellis in the same draft. The Celtics may have made a promise to Reggie Jackson last season after he cancelled workouts, although the Nets, Blazers, and Heat were also mentioned as possibilities.
So, if there is evidence that a player has a draft promise (usually due to workouts being cancelled), Ainge is probably a good suspect if he has a pick in the appropriate part of the draft and the player is the kind of guy he takes. This doesn't mean Ainge has made a promise to Royce White or any other player, just that he has a track record of doing so.
Are there other draft promise rumors in Ainge's past that I am missing?