Trust me, I definitely understand what you are saying. Getting things through to Doc is a system of manipulation. You truly have to use him and his style against him. You have to drop seeds (ideas) and seek every opportunity to have the conversation come up again, so it appears you are just sharing a good idea with him. There are times he is literally seeking input. There is no better time than then. There are some alums, who he has built confidence in over the years, especially when they marched in the Juke, that he strongly considers their suggestions. You probably noticed some of those cats sitting in his office when you marched, even after you all were let go for the evening. All kinds of discussions were occurring (updates on his kids; which section seems to be kicking the most butt or showing the most improvement; memoriable stories from the past; hot songs and/or dances; students who could use a job over the summer; etc...). No, he didn't just do what the alums that he valued said, but it added weight to it, especially if some band members that are building that level of confidence with him and other valued alums also mention the same thing.
But hey, times changed, but Doc really didn't. The complexity to work through change and that isn't something to get into here. But, I'll assure you the adjustments that I'm aluding to with that comment wasn't in your favor to get some of those ideas in Doc's approval bucket.
We certainly aren't as far apart in our comments as it may appear.
Peace...