Control what you can

Players are not going to make every shot, so we say they cannot absolutely "control" that factor (even though theoretically they do control the shot). What they can control much more directly is taking good shots - when they are open, with the right technique - all the things good coaches teach. If they control the attempts, the shots are much more likely to fall. My observation from watching high school players is that teaching them what is and is not a good shot, and to take one and pass up the other, is one of the toughest tasks coaches have.