If you are a brand new teacher, fresh out of college, taking a job at a high school where your marching band staff has already been hired, the show already been picked out, all of you drum majors, section leaders, captains, etc. are already selected, I really don’t advise trying to change anything too major.
If you are going to make some changes anyway, say, to your staff, I advise you let your staff know what you are thinking right away. And don’t tell any of the kids about it until you have made the final decision.
If you are a new director, fresh out of college, and this is your first big gig, you are probably quite enthusiastic, very young, and you most likely still have a LOT to learn. Try to make as few mistakes as possible during those first few meetings with the staff and the kids. This will make or break your entire season, if not your year.
If you are going to be friendly with the students, that’s great. Just remember that you are the adult and have to set some boundries, one of which would be telling the kids about what you might or might not do with the current staff.
Just thought I’d throw that out there as some friendly advice from someone who has worked under new directors many times in the past.