Lucas Nogueira of the Raptors needs a big boost all around (hands, defense, free throw, speed, dunk, rebounding). He's been the best big man off the bench for them. He's got a 2.6 STL% and a 8.4 BLK% (per 36 that's: 1.8 STL and 3.5 BLK.. only big man in the league with those numbers).
Also Patrick Patterson needs a lateral quickness boost. He's one of the quickest PFs in the league on defense.
And Pascal Siakam on the defensive side. I manually upped his tendencies to look for blocks, but for online Raptor users he deserves that update.