Mike Tomlin to step down as Pittsburgh Steelers head coach
IE 11 is not supported. For an optimal experience visit our site on another browser. Now Playing Mike Tomlin to step down as Pittsburgh Steelers head coach 00:29 UP NEXT Scott Adams, ‘Dilbert’ comic strip creator, dead at 68 00:31 Greenland’s leader says they will not be part of U.S. 00:47 Women who accused pastor…