3. Doug McDermott
The Spurs addressed a big need for outside shooting last summer, and the acquisition of Doug McDermott was a big part of that. His team-best (among season-long players) 42.2% shooting from downtown helped them go from 24th in 3-point accuracy last season to 18th, and the Spurs were a top-10 scoring team all year thanks in part to that increased efficiency.
Still, it was noticeable how much the Spurs' defense suffered when McDermott was on the floor. Granted, he's never been advertised as a defensive specialist. He has one main role -- to get buckets -- and he does that well. But given how much two-way talent the team now has and the potential to add more in the draft and through free agency, I could see the Spurs shipping Doug off this summer.
McDermott is still owed $13.75 million in each of the next two years, so a trade is the only scenario he could be let go, but there's always interest in premier shooting like his. He could be a name to watch on draft day as the Spurs maneuver with four picks at their disposal.