The sports world the last time Mike Tomlin didn't coach the Steelers - ESPN

It's been quite a long time since Mike Tomlin didn't serve as the Pittsburgh Steelers head coach.

Tomlin stepped down on Tuesday, ending a 19-year tenure that included one Super Bowl victory and a 192-114 record. He ranks behind legendary head coach Chuck Noll in games coached (309) and wins (193) in franchise history, but holds the record for the best win percentage of a Steelers head coach (62.8).

Pittsburgh hired Tomlin in January 2007, making him the first Black head coach in the team's history. He had spent the previous season as the Minnesota Vikings' defensive coordinator. Since then, it's been a mark of stability for the Steelers, who never recorded a losing season with Tomlin at the helm.

Here's a look back at what the sports world looked like the last time Pittsburgh had a different head coach in a game — Dec. 31, 2006.

Pittsburgh won in Bill Cowher's final game as its head coach, but it didn't come easy. The Cincinnati Bengals took a 17-14 lead with 2:47 remaining in the game and needed one stop for the win. The Steelers answered back with an eight-play, 66-yard drive to kick a field goal and send it to overtime.

The extra period came to an end after three plays as Pittsburgh quarterback Ben Roethlisberger found wide receiver Santonio Holmes for a 67-yard touchdown. Cowher resigned as Steelers head coach five days later, citing a desire to spend more time with his family.

Pittsburgh's victory had major implications for Cincinnati. The loss ended the Bengals' playoff hopes after they won the AFC North the previous season.

The BCS National Championship Game became a standalone event in the 2006 season — and a dominant SEC side made the most of it. Florida downed Ohio State at the Tostitos Bowl to win the