I went to a small uni, and about half those jobs were held by students. There was an ancient mailing list server some kind soul set up in 1994 or so, where you could go to swap cleaning duties in case you wanted to stay in a particular department, to get a chance to "tackle" a prof and ask them stuff.

School is STMU in San Antonio, TX by the way. I ended up a workstudy in the proto lab, and left with my degree AND about nine tenths of a machining certificate.

I think you need to check your dictionary for a proper definition of "administrative". Nobody has been bemoaning the exponential expansion of janitors and cafeteria ladies on university campuses.