Anyone that has coached any level has had to teach players the difference between bad and good shots. And every coach at every level in basketball has also had to have a similar conversation with the team's leading scorer(s).
Coaching shot selection occurs in the first month of practice of the first year of playing town league basketball in 3rd grade. Some players get more flexibility than others, but that is always a relative assessment. In other words, the star may have a bright green light if the team around him (or her) sucks, but if there are other shot makers around the star, then the star needs to cool it with the crazy shots. And even if there aren't other shot makers, sometimes the star needs to give up the ball, work to get open, and get the ball back. Keep the defense honest.
Vital and Gilbert take insane shots, and neither of them is anywhere close to the best option on the team for shot making. Polley and Bouk are better from outside, and Carlton needs touches in the paint. Vital's 33% from deep is misleading because I suspect he is over 40% when he shoots off the catch, and is probably hitting about 1 out of 6 of his pull up 3 point attempts.
None of this is that hard to figure out, and part of coaching is teaching an offense, and then rewarding those who make plays within the offense, and punishing those that don't. Playing time is the easiest reward system there is.