Bill Bergey is yet another member of this list who did not start his career in Philadelphia, but definitely left his mark here.
The middle linebacker was a great tackler, so much so that in one season he record 233 of them. It was his knack for intercepting the football, however, that made him such a stud. Over the course of his career in Philly, Bergey notched 18 interceptions, which was unheard of at the time. Even in today's NFL, that is pretty darn impressive for a linebacker.
