Jimmy Kennedy was very good at football. He was not as good at football as many people would have liked. But he was 6'4 and 320 pounds, a hulk of a man and a space eater in the most literal sense of the word.
Before coming to Penn State, he was a high school All-American. While at Penn State, he was a four-year starter, a two-time all-conference player, and a first-team All-American. He once had four sacks and five tackles for loss in one game--and against Wisconsin, not some out-of-conference cupcake. In a very strange coincidence, he shared a birthday with Brooks Bollinger, the guy he sacked four times.
Anyway: Kennedy had 87 tackles in a single year. The dude was simply unblockable. And in the NFL, Kennedy was a Super Bowl champion. No, he didn't live up to the 12th overall selection the Rams used to take him in 2003, but he had a legitimate, eight-season pro career, the kind one can walk away from with no regrets.