Danny Ainge frequently views prospects who lack a natural position as an opportunity for role versatility. Sometimes it works (Avery Bradley and Marcus Smart). Sometimes it doesn’t (Gabe Pruitt and JR Giddens).
When Terry Rozier slid out of the 2015 draft lottery, the critique of him was that he was a position-less super-athlete who didn’t have the facilitation skills or creativity to thrive as an NBA point guard, and lacked the knockdown sharpshooter potential and wingspan to excel as an off-ball guard. So where other general managers proceeded with caution, Ainge capitalized on drafting a tweener who was hungry to prove his doubters wrong.