Anything you can do to pitch in will make the program run more smoothly, and will help all the kids, from helping out at tryouts, to scorekeeping or field preparation, to umpiring. Amongst the board members are those that have helped out with field prep, scheduling, scorekeeping, umpiring, equipment and uniform management, snack bar operations, and fund raising. Everyone can find a place to help. If you love the game of baseball, but can't be available often enough to coach, Umpiring is a great way to volunteer. And, CPBA provides all of the training anyone needs.
Different coaches have different philosophies.
Some believe in having players play all positions, some want players to become good at one. Show up for the games AND the practices . Most people wouldn't dare to not show up for work and still tell the boss what's wrong with the company, but they will turn around and do just that with their child's' coach. This is one of the most important things the kids should be learning. If you don't agree with an umpires call, keep it to yourself.