Running back Earl Campbell of the New Orleans Saints retired Monday after nine seasons in pro football. He ended his career with 9,407 yards rushing. I'm a man; I'm not a little boy, Campbell said during a news conference at the Saints' training camp in Hammond, La. I believe this is the best thing--not only for myself, but for the Saints.. Saints' Coach Jim Mora said: He's a cinch for the Hall of Fame.. Campbell, 31, spent six seasons with the Houston Oilers after winning the Heisman Trophy in 1977.