Lawrence McCutcheon was a better than you remember Running Back, who spent his entire the best years of his NFL career with the Los Angeles Rams.

Ray Donaldson played seventeen seasons in the NFL, the first thirteen with the Baltimore/Indianapolis Colts, where he was their starting Center for twelve of them.

Only Mike Kenn played more Games (251) than Jeff Van Note (246) did with the Atlanta Falcons, and for nine years, they would play on the Offensive Line together.  Van Note played at Center after being drafted in the 11^th Round of the 1969 Draft, and over his 18-year career (all with Atlanta), he would only miss four games due to injury.  

Paul Brown called Lou Rymkus the best pass protector that he ever saw, which is high praise considering how many people he saw do that task.