Life may be more than band and a trapezoid trophy but is about doing what is best for your community and students.

What exactly is unethical or illegal about this rehearsal plan? What in this rehearsal plan would or could cause a legitimate lawsuit?

I have been a band director for 30 years now and I can't think of a time that I ever had 100% approval from the parents or students for decisions that had to be made.

You do the best you can and make decisions that will be in the best interest of the majority of your students. "The needs of the many outweigh the needs of the few or the one"

Sometimes situations call for out of the box thinking.

Water your own grass before trying to fertilize someone else's