Mike Tomlin is the third longest-tenured head coach in the NFL right now, as he has been coaching the Pittsburgh Steelers since 2007. However, Tomlin's footing in Pittsburgh does not appear to be all that stable at the moment.

After some were calling for his job following the Steelers' second-half meltdown that resulted in a 9-6-1 finish without a playoff appearance this past season, Tomlin signed a one-year contract extension with Pittsburgh to keep him on the sidelined through 2021.

But that represented a slight change for Tomlin, as he has generally signed two-year extensions in the past.

Still, the 47-year-old says he is not worried about his future:

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“I love the job,” Tomlin told Peter King of NBC Sports. “I love the challenges it presents. The variables are ever-changing. It’s continually stimulating. In terms of longevity, I don’t think a lot about longevity. I just like to feel the urgency of now. You do that enough, and you win enough, and you get longevity. Longevity has never been my focus. I just want to be a really good football team here in 2019.”

Tomlin has had an impressive run with the Steelers, going 125-66-1 with six AFC North division titles, eight playoff appearances and a Super Bowl championship under his belt.

However, after Pittsburgh's playoff flameout two seasons again and the team missing the playoffs for the first time since 2013 this past year, patience is beginning to run thin in Steel City, and the fact that Tomlin seemed to lose the locker room in what was an overall dysfunctional 2018 campaign didn't help his case much.