Arthur Kaluma - Creighton
Arthur Kaluma is a versatile, albeit defensive-minded big that has some potential to stretch the floor. He's a good rebounder and passer for his size but appears to be caught in between positions a bit. While he seems comfortable shooting threes at this point, I'll be waiting to see what else he can do both for himself and his teammates on offense.
Mouhamed Gueye - Washington State
Despite not having the most impressive strength, at 6'11" with roughly a 7'5" wingspan, Mouhamed Gueye has length that will be tremendously helpful on the defensive end. He runs the floor well and can operate as an effective spot-up shooter. If he can prove that he can hit shots and that he has a consistent motor, he could very well enter the first-round conversation. He could also end up being a bit overshadowed by his teammate, though.
Efe Abogidi - Washington State
Between Mouhamed Gueye and Efe Abogidi, who both chose Washington State over some higher-profile basketball programs, this should be a fun frontcourt to watch. Abogidi is another one of the few returning NCAA players that made it to this list but based on his ceiling, he's deserving of a mention.
Like Gueye, Abogidi is similarly lanky and confident to let it fly from three. His efficient free-throw shooting is a good sign his jumper will come with time, but he needs a good season for first-round consideration.
Moussa Diabate - Michigan
As unpopular of an opinion as it may be, I'm looking forward to watching Moussa Diabate a bit more than his teammate Caleb Houstan. Now standing at about 6'11", Diabate is definitely on the thin side at 201 pounds but plays bigger and more aggressively than one might assume. If he proves that he can consistently guard both the 4 and 5 and keep up with smaller guards, he'll get a lot of looks. If he can continue to extend the range on his jump shot, he could even sneak in the lottery.
Daimion Collins - Kentucky
Daimion Collins is the third Kentucky freshman to make this list and by far the most athletic of the bunch. He's quick on his feet, may be the best vertical athlete in his class, and has the length to theoretically guard every position on the floor. Outside of that, though, Collins is still very raw.
While his athleticism and shooting upside give him a very high ceiling, decision-making and knowledge of the game--particularly on the perimeter--are still big question marks for the 19-year-old. If he can carry over his good shooting from the Blue and White Scrimmage into the regular season, he should start to garner much more interest from NBA teams.