We play our safeties way back and even our lbs at times. It’s an easy 4 yards if you’re willing to take it. Even UCF was averaging almost 5 yards a run the first half but they were down so much they kept trying to throw. When they stuck with the run they scored.
Coaches really need to move more defenders into the box on run downs. The way they scheme “spread” teams is to move guys back in zone and they are particularly susceptible to giving up the rush game if those type of offensives will take it.