Jon I like the letter and I would send a similar letter to parents, not as long, but had much of the same points. I did not see it as a rant, rather a coach who is looking for the best learning and playing experience for his players.
Some of the parents ruin it for the kids and being up front of required conduct for parent and child is a beneficial ideal.
Daughter was asked to help a 10U team, she is 17, and had a parent scream at her because she gave instructions of relax and focus to the daughter of a player while she was at bat and she ended striking out. I told her unless the coach corrected the parent I would not go back and help.
