Tre Mann exploded up draft boards in the later-half of the year as his scoring became more consistent and the shooting from deep was not just a small sample size. He's turned himself into a shot-maker in difficult ways off the dribble, off step-backs, pick-and-roll pull-ups or deep behind the line. It's the most currently tantalizing skill for a guard to possess. But where's the rest of his game at?
Mann is a mediocre athlete with below-average wingspan. NBA-level defenders who challenge him behind the line could have success. In college, there's a sense of constantly daring guys to beat you from deep and a strategy to be lane protected at all times. That won't always be the case in the NBA. POA defenders are used to picking guys up high above the 3-point line and pressuring. To me, there's a lot of risk that Mann will be disrupted in those areas.
I also don't think really highly of Mann's impact on the other end. Guys will go at him and beat him in straight lines. He shies away from contact and physicality to finish drives.
At 6'5", he has good size as a point guard, but if he doesn't use it, all he is is slightly taller than the guys he tries to shoot over. I think Mann is a second-round pick in my book; I understand the appeal of his skills elevating him to first-round consideration, but I wouldn't take him until the 30-40 range.