George Halas (40 years): Few people in football history have a more interesting story than George Halas, who served as a player, coach and executive of the Chicago Bears. His coaching tenures ran from 1920-29 to 1933-42 and 1946-55 to 1958-67. Along the way, Halas won 316 games and guided the Bears to six league championships.

Curly Lambeau (33 years): The namesake of the Green Bay Packers' stadium, Curly Lambeau had a prolific career in the same era as Halas. Lambeau coached the Packers from 1921-49, compiling 209 victories and six NFL titles. He also spent two seasons at the helm of the Chicago Cardinals and Washington franchises in 1950-51 and 1952-53.

Paul Brown (25 years): Paul Brown is remembered as the catalyst for the integration of football. After leading the Cleveland Browns to AAFC championships in 1946-49, he oversaw NFL-winning squads in 1950, 1954 and 1955. Brown collected 158 wins in 17 seasons with Cleveland and added 55 more after co-founding the Cincinnati Bengals in 1968.

Steve Owen (24 years): Throughout his career from 1930-53, Steve Owen stayed with the New York Giants. He went 153-100-17 in 24 seasons, helping the franchise win championships in 1934 and 1938.