If you aren't careful, smaller, cheaper, and creative would end up looking (and sounding) like SMU's band. The Mustang Band was smaller, cheaper, and more creative in about 1952, and aside from not being able to fill their ranks for the last few decades (us olds that pay any attention to college football bands remember their catch-phrase "96 guys and a doll" aka "96 queers [NTTAWWT, but that's what the TCU band members of my era called them] and a dog"), they haven't changed a thing. Although I suspect they let women play instruments in modern times-- in the olden days the only gender-identified female in the group was the twirler. Not only do they suck but they're horribly dated, sort of like SMU undergrad.
About 1970-ish, Prof Jacobson talked about trying to move toward something that looked and sounded like a jazz-era big band, but that discussion seemed to peter out. Two important problems: (1) a Stan Kenton-style band wouldn't train music ed majors to teach public school band as high school bands were expected to be at the time (not to mention the fact that Stan Kenton quality musicians were hard to find, even for Stan Kenton), and (2) the powers-that-be with Mrs. Moudy, the Chancellor's wife, as their spokes-loudmouth wanted a "traditional" TCU band, and pushed back hard, and in Jacobson's ear, against anything radical.
FWIW.