Of the 32 NFL head coaches that started the 2011 season, 28% played in the NFL ...
1) Ken Whisenhunt, Cardinals - TE for the Falcons, Redskins, and Jets between 1985-1992.
2) Ron Rivera, Panthers - LB for the Bears between 1984-1992.
3) Jason Garrett, Cowboys - QB for the Cowboys and Giants between 1993-2000.
4) Gary Kubiak, Texans - QB for the Broncos between 1983-1991.
5) Jack Del Rio, Jaguars - LB for the Saints, Chiefs, Cowboys, and Vikings between 1985-1995.
6) Leslie Frazier, Vikings - DB for the Bears between 1981-1985.
7) Sean Payton, Saints - QB for the Bears in 1987 (replacement games during the strike).
8) Jim Harbaugh, 49ers - QB for the Bears, Colts, Ravens, and Chargers between 1987-2000.
9) Mike Munchak, Titans - OG for the Oilers (now Titans) between 1982-1993 ... elected to the Pro Football Hall of Fame in 2001.