Bennett was still a really damn good player in the NFL but the problem was he never lived up to the level he played at in college and that was probably due to the injury.
His college years were before my time but from my understanding he was expected to be the next Lawrence Taylor going into the NFL so those expectations were always going to be hard to live up to. But he was absolutely a dominant player for awhile. Didn't he have some insane stat line against the Eagles in 88 with something like 16 tackles, 4 sacks, 4 forced fumbles.
He also held down the fort in 1991 when Bruce was out most of the season, he was the AFC Defensive Player of the year that season