The Steelers have had just three head coaches in the history of their franchise including Tomlin, who has been in charge at the club since the 2007 season.
Tomlin has admitted that, despite the Rooney family's patience with their coaches, he knows that the club have to get back to the playoffs this season, having missed out in the past two years.
"I don't assume that," Tomlin told the Pittsburgh Tribune-Review. "Hopefully [when the season ends], I'm not one of them."
The Steelers finished with an 8-8 record in the 2013 season after losing the first four games of the campaign.