Tony Dungy: 139-69, plus 9-10 in the playoffs. (1 Super Bowl win)
Mike Tomlin: 125-66, and 8-7 postseason. (1 Super Bowl win)
Dennis Green: 113-94, and 4-8 postseason...
Lovie Smith: 89-87, and 3-3 postseason...
Jim Caldwell: 62-50, and 2-4 postseason...
Art Shell: 56-52, and 2-3 postseason...
Herm Edwards: 54-74, and 2-4 postseason...
Ray Rhodes: 37-42, and 1-2 post-season...
Romeo Crennel: 28-55, never made postseason...
Todd Bowles: 26-41, no postseason...
Mike Singletary: 18-22, no postseason...
Raheem Morris: 17-31, no postseason...
Hue Jackson: 11-44, no postseason...
Vance Joseph: 11-21, no postseason...
Steve Wilks: 3-13, no postseason...
Anthony Lynn: 21-12, first postseason about to begin. (LA Chargers)
Those that win, stick around. Those that don't... don't. Race has nothing to do with it. Winning does.
Tony Dungy and Mike Tomlin both had Hall of Fame quarterbacks who stayed healthy.
Green made the Playoffs eight times with seven different starting QBs.