Very difficult to say right now. On the one hand, he's definitely an NBA player (unlike some choices in the recent past). Looks like a good athlete that can slash once he get's comfortable. Yes, his shooting likely won't ever be good.
Hence I'm making the Demar comparison/ceiling. As long as Langford can hit the FTs over 75 percent, it won't be all that bad (worst case)
DeRozan an elite midrange shooter. Elite. This comparison doesn't work, Triboy. At least not now.
At the moment, am not sure a good prototype.
Man, I reviewed the data, and have to admit that on further reflection, DeRozan is a pretty good example. Watched more tape of Langford from HS, and he does remind of Demar quite a bit. TP to you, Triboy.
Their athleticism is very similar. I think DeRozan's shooting form naturally led to a mid-range game that became deadly. Langford's form is different and I think it will be more difficult to develop NBA fade-aways (not impossible, just not as natural). I think many fans may not see Langford's comfort scoring anywhere inside 12 feet with a variety of moves - floaters with either hand, layups with either hand, two foot jumping, one foot jumping, wrong foot jumping, sudden stop/half fade ala Hayward, etc. That kind of craftiness is where his strength will be. That's why I tend to think Hayward is a better comparison.
I like his willingness to fit into the team right now without demanding the ball or forcing bad shots (ahem, Semi Ojeleye, ahem). I like his effort on defense and I think there is enough evidence to suggest he is working hard on his jumpshot. I think he will be successful in the NBA because of those qualities.