I'm one of the people who has stated that Wright needs to work on his shooting. However, Rozier needs to work on his shooting even more.
Last season Wright was the only perimeter threat for the Utes and faced constant double teams. He still shot 26 for 73 from outside for a .356 percentage. He also .836 of his free throws. He has a good form on his shot, but needs to tighten up his mechanics, especially off the dribble.
Rozier made 48 of 157 three pointers for .306 from the outside. Obviously, he launched twice as many and didn't get a great percentage of them to fall. That is a shot selection issue. He made .790 of his free throws at nearly the same number of attempts which is not great for a lead guard.
As a playmaker, Wright has the clear advantage. He had far more assists - 178 compared to 108 - with less turnovers - 68 compared to 79. It's not a knock to say Wright is a more polished playmaker while clearly a little more advanced as an outside shooter.
The defense comes into play when you talk about Wright's ability to switch as a 6'5 point guard. I just can't justify Rozier over Wright, although Rozier could certainly develop into a solid backup point guard in the NBA.