Going into HS, son had a new HC, he started on JV, I never worried about his playing time, son took care of that. I have found that parents who worry about their son's future playing time know in the back of their minds junior isn't the best. Now I'm sure there are some places where politics may play a role, but really if your son is a top notch player ( you should know by HS) playing time will not be an issue. I think 99% of coaches want the best chance to win. Even in our son's situation, the new coach wasn't his best supporter but had to because of his abilities as a catcher. And it just so happened the coach's son was our #1 pitcher. So it worked out for son, he and others on his team did not like playing for this man due to his attitude.