Young seems to be on the border between the very tail of the 1st round, or the 2nd round. Definitely drafted, but maybe not a guaranteed to stick on a NBA roster. 2 more inches and he probably would be 10+ spots higher even with his same skillset and an easy 1st arounder. At 6'8" he needs to show at least a LITTLE bit of a face up game and some more refined moves in the post. Without those improvements he will probably continue to be right on that cutline.
Murphy seems to be skyrocketing this year. I think even the NBA will take notice and maybe (shockingly even 12 months ago) he ends up higher draft pick than Young. I never imagined Bonner ever making the NBA, and dude is STILL getting it done with the Spurs almost 10 years latter. Murphy is a clone of Bonner. A smart NBA team would take a shot on him very late in the 1st round and maybe have a 10 year NBA player (maybe a 6th man or 7th man just as a shooting specialist, but in alot of cases that's the perfect fit for the best teams in the league that are just looking for an extra piece here or there, and not a franchise player)
Basically we have two guys that if they left right now would be on the tail end of the 1st round or maybe 2nd round picks.
Outside of that, Yeguette has potential if he keeps improving but is probably not really on the NBA radar at all yet. Fraser II might be one to look out for in the coming years as he seems to have possible 1st round potential. Prather has NBA athleticism, but he would have to be a 2 guard and his ball handling skills are not even close right now IMO. He's a guy you have to be really pulling for though with the way he plays.