Marion Campbell

Francis Marion Campbell (born May 25, 1929) is a former American football defensive lineman and head coach. Campbell played college football for the Georgia Bulldogs from 1949 until 1951, where he was appropriately nicknamed "Swamp Fox". During his NFL playing career, Campbell played for the San Francisco 49ers (1954–1955) and the Philadelphia Eagles (1956–1961).

Campbell has the third lowest winning percentage among coaches who have coached more than three seasons in the NFL. The only coaches behind him are Bert Bell and David Shula.