Kampman's a very good player, but many of his sacks were hustle coverage sacks. The hustle was why I liked him so much, he did the most with the talent that he has.
My take on Kampman, having watched him his entire NFL career is:
an above average DE, with an enourmous amount of heart and hustle. The guy never quits, but he's not the most talented. He doesn't really generate sacks himself. Like I said. A lot of his sacks were coverage sacks w/ guys like Harris, Woodsen, Collins in coverage.
I still love the guy and wish him the very best with the Jags.