Following the surprising news Thursday morning that longtime head coach Bill Belichick and the New England Patriots were parting ways after 24 seasons that shook the NFL landscape, there is now a new name atop the list of longest-tenured head coaches in the NFL.
Mike Tomlin.
Tomlin, in his 17th season as head coach of the Pittsburgh Steelers, now holds the title of longest-tenured head coach in the NFL. Hired ahead of the 2007 season by the Steelers, Tomlin has been the man in charge for 17 years and counting and is showing no signs of slowing down anytime soon, or going anywhere else.