IMO the coach should stay in his seat and stfu when he is not shooting. Let then lean by practicing. What I see in league play is your a apa 2 w/o a coach and a apa 4 with a good coach. This is pool? No thank you. Johnnyt
Having a coach for newer players isn't a problem, unless it's abused. Like anything else, it's those who try to take advantage who make it a problem.
Those people are the minority. It's just that those who make problems stick out and are more memorable than the week-after-week time-after-time when coaches are done properly within the rules. You don't notice when people do the right thing, just when they break or take advantage of the rules.
Johnnyt, it may suit you to make someone's wife learn the hard way, instead of being given the chance to be helped out a little in a real-time situation. Fortunately, the APA realizes that beginners are more likely to stay with the game if they are treated like beginners and given a little bit of help, at the time when it would help them learn the most. And that's what the APA is supposed to be doing, helping people get started in the game. For more experienced players, you are correct, coaches aren't necessary.