It's hard to build a music community at a middle school. The kids (and their families) are only there for two years. Plus add in the fact that a lot of the parents haven't really been exposed to school music programs. You find yourself having to educate the parents as well as the kids... and that doesn't always go over well.
I'm lucky to work in a place where I have a lot of time to foster that kind of community.
I'm sure the other Maestro misses you too. Which do you think is harder to come by... good teachers or good administrators?
I volunteered with a 5th grade band teacher for a year; it was the best volunteer experience of my life. She had too many students, no aide (and any aide would have had to know music to be truly helpful), endless enthusiasm, and no practice rooms.
I'd try to get community members involved--specifically recruit through the Kiwanis, Rotary, and other groups for musicians to help. Schools need to do more of that sort of thing anyway, because you need to get community members INTO the schools so they can see what the needs are, how many is spent, and how they can help.