Not to get off track, but I'd like to present a case for the importance of teaching your catcher the skills needed to call an effective game.
Pitching in high school was a frustrating experience for my daughter. She had a very inexperience catcher who had little or no exposure to travel ball - very motivated - but not skilled. Try as they might, they just never really got into a groove. She spent so much time shaking off pitches that it destroyed any rhythm and flow needed to be an effective battery. I'm not sure her coach would have improved the situation by calling the pitches, either.
Fortunately, she had a very good travel ball catcher, and they communicated very well with each other. My daughter is very good at remembering characteristics of batters she has faced before - even from previous tournaments.
I don't remember a single game of summer travel ball where her coach called the game from a bucket. Before every game during warm-ups, my daughter and her catcher talked about what she felt comfortable throwing that particular game. Then, during a game, my daughter had the green light to shake off a pitch she didn't think would work, or change the called pitch to whatever pitch she felt would work. Even so, she rarely shook off a pitch with this catcher, because the catcher was so good at reading how my daughter's pitches were working. Both of them didn't just learn this overnight. It came from several years of experience (the school of hard knocks!).
An experienced, skilled catcher at the high school level who can call a game is worth their weight in gold. They can make or break the best of pitchers. Like someone said, most of the time the pitcher gets the glory. I think a great catcher is the invisible hero. The proof was the amazing difference I saw between high school and summer ball.