The Yabusele and Zizic picks at 16 and 23 that year honestly astonished me, and frankly I had no clue who they were up to that point (Yabusele especially).
There were so many other guys who were higher than them on mocks and rumored to be chosen by Ainge, and yet he chose these two??
From what I've heard, he did it to maintain roster flexibility and so he could stash some of the picks (which he did), but yeah honestly in regards to Yabusele, the potential is there but it will take a lot of time for it to get fulfilled. I see him as a rotation player at best.