I was a pretty good HS basketball player and outside shooting was my game. My boy’s basketball head coach never said one word to me about my shooting mechanics.
The JV girl’s coach was walking through the gym one night when I was alone, shooting. He approached me and said he noticed my feet were pretty close together when I shot, and it might be affecting my consistency to go straight up when I shot. I made a conscious effort to start each shot with my feet set farther apart and the results were immediate improvement.
I often wondered what else I might be doing wrong. Good performance can be great performance with excellent coaching.