I see no reason why Chism can't be at least a decent FT shooter. His form is consistent, good rotation, and a pretty soft touch. He just needs to dedicate himself to getting better at it. Same with Childress.
Crews...I don't see him ever being a good FT shooter. His motion is too herky jerky, and his shot is flat. He looks like he's shooting a medicine ball.
Lofton is good. Ramar could be great if he were a good FT shooter, I thought he improved over the season a little. JaJuan has gotten significantly better every year since he arrived at UT. I think he can be an 80% FT shooter.