It's the same kids the band directors complain about won't do anything. Why work for one program but not the other? So rather than complain about a constant decline why don't you dig in and figure out why the coaches are successful even when they aren't but the band isn't. When I decided I wanted to retire rich I went and figured out what rich people spend their money on and more importantly what they don't spend money on. When athletics was out-recruiting me I went and figured out what they were doing that I wasn't. I watched practices and I talked to the coaches to see what was different. I bet I talked to my head football coach at least 1 time a week and there were weeks when it was a daily conversation.
My biggest recruiting line was always, "we don't have a bench". Everybody plays if you are in band. There are no "starters" and nobody is "cut" from the band. Everyone is a starter and everyone has a place. I put as many kids on the field as I could from day 1. Everyone had a role to play. And I NEVER cut kids out of Concerts or contests. Ever.
Not to be mean but if the kids are the same and they work for one program but not he other the only constant in the decline is the director. Soul search and fix it rather than wringing your hands and complaining about the youth of the day. Kids are kids. Always have been. What do you think adults said about the kids growing up in the 70's?