While I can see that this situation is frustrating, and how you may want to take action on it, I feel that you may need to work in a different way. Instead of directly speaking with the band director, I would have first spoken (calmly) my concerns to my theatre teacher ( in this case, your tech director). Then he or she can decide what to do, if anything. It may be that your two departments aren't getting along administratively, and the situation is beyond your control. Overall, I would say, just work with what you have, and keep your cool--getting angry just makes the situation all the more stressful, and doesn't get the problem solved. It may be that your tech director is doing all she can behind the scenes with the administration.