Actually our assistant BD Mr. Hunter Bown runs the marching band rehearsals and often I've seen change some aspects of the show to fit the needs and was given a lot of leniency. I'd go as far to say that in recent years he's had almost full control of the marching band. The previous HD mainly focused on administrative things and would focus more on the GE and visuals of the show such as guard staging and work, but she also gave leniency to the guard director to figure out the work. I don't see any reason this'll be changed but we have yet to see. Although I believe it to be unwise for the new HD to takeover the marching band his first year with them.