Michael Vick
Few players had the same impact on a franchise as Vick. The former Falcons quarterback became the face of the franchise and also changed the perspective of his position. His ability to rush was unlike anything that NFL fans saw before but his legacy imploded (via The Spun).
That’s because an FBI investigation uncovered that Vick was the leader of a dogfighting ring. He found himself in jail for a couple of years before a return to the NFL. The Eagles decided it was worth granting him a second chance and he re-established himself in the league.