As far as the Raptors...I don't follow college hoops enough to have an opinion right now about the #20 pick. Once I start reading some mock drafts and scouting reports, I'll develop an idea of who the best fit is.
What they need this offseason is a backup big and a legitimate Small Forward. This team can't go into next season starting Terrence Ross. A lot of people want a new 4, but the Amir Johnson/Patrick Patterson duo is good enough unless they can land one of the top guys. I think they should let Lou Williams walk...he's going to want too much coming off the 6th Man of the Year campaign and, as good as his scoring was, it hurt the team's flow on offense.
Last, but not least, is Casey needs to be replaced. I feel like it would be a waste of a season to wait for the team to get off to a bad start before canning him. I understand if Ujiri is waiting for a specific coach to become available, though. Really I'm just hoping that Denver and New York are both horrible next year, because the Raptors get whichever pick is worse of the two in 2016. I'm hoping both teams are in the bottom 5 next year.