I think if the draft were today, Coffey would definitely have a shot at getting taken in the late second round. I do think he'll at some point become a solid starting SF or key backup in the NBA.
Murphy is undersized for a 4 and doesn't have the skills to be a 3. I guess since the NBA is trending more towards small ball, its not impossible he could get a few minutes as a PF in a small ball lineup but I think it's doubtful.
Curry maybe has somewhat of a chance if he gets better due to better size and length than Murphy but if he makes it, I double he'd be better than a teams #3 or 4 PF.
I think if Mason were to ever play in the NBA, his ceiling would be what Tyus was last year, an undersized, slow non athletic point guard on a bad team. Tyus is much more skilled of course than Mason and was a fringe NBA player last year.
I don't see it with Lynch.
Mcbrayer's chances are greater than zero but of course very unlikely.