IM79 and slugboy hit the nail on the head. Groh ran a 2-gap scheme, where the DL needs to be able to control their assigned OL and the gaps on either side/ command double teams, thus freeing the linebackers to make plays. The hard part is that we probably had issues recruiting the D-linemen to run that scheme. Woody ran a one-gap scheme (which is typically used in the 4-3), where the D-linemen would attack a single gap and relied on the speed of "undersized" linemen, not just linebackers, to create havoc, which was really well aligned with what we had at the time. He had a lot of success at App using that scheme, even against major P5 programs with superior size and talent. I think we would have had a lot of success with the flexbone offense and Woody's defense if the players were given more time (and more familiarity) with the system and he was able to be more aggressive with his play calling. Efficient ball control offense + aggressive ball-hawking defense would have been a thing of beauty.