Like several people said, they just don't seem to be having fun - or be allowed to have fun. If you listen to the band in the background of these classic games they're replaying this summer from 95, 98, 01, 04, etc. they're playing songs at a slower tempo now. They've eliminated some of the interactive songs/chants.
Most of all, the band has become a problem to deal with for the administration. They were cut down to two full band overnight road trips a season, but still were funded to take the full band on one-day trips to places within 3-4 hours like Vandy, UK and Georgia. In protest, they started taking only a pep band. They refused to bus a pep band to Arkansas last season after Hart didn't want to spend the money for a second charter plane to take them and the cheerleaders when our fans had only bough 1,500 tickets.