The C's are pretty easy for this, but a team like the Thunder or Spurs is a much more interesting discussion.
Like for the Thunder - SGA, Chet, Jalen are very obvious, and I'd assume they'd keep Wallace, Hartenstein, and Dort. So that is 6. But they have Mitchell, Wiggins, Joe, and Caruso, which 2 you keeping of those 4? I'd probably keep Mitchell and Caruso, but it isn't an easy choice.
Or how about the Spurs - obviously you keep Wemby, Castle, Harper, Fox probably Vassell and Champagnie, after that which 2 you keeping of Barnes, Kornet, Johnson, Sochan, Bryant. Here I'd keep the young guy Bryant and then probably Johnson, but that is very difficult with Barnes and Kornet.