The booster expectation is always to win. If you don't, you're on the chopping block. Realistic or not, college football is all about money. Losing teams don't generate as much money, plain and simple. Stadium improvements, indoor practice facilities, are always needed to keep up the game. Big donors won't contribute to losing programs, and will certainly grumble ( or worse) when teams start to lose. It's hard to stay at the top every season.