There are a total of five active head coaches who have been in their position for more than a decade. Including those who have coached in multiple places, there are eight total head coaches with that level of accrued coaching experience at the top of the profession.
Two of them have personified arguably the most significant modern rivalry in the NFL, the head coaches of the AFC Norths’ Pittsburgh Steelers and Baltimore Ravens. Mike Tomlin was hired by the Steelers in 2007. John Harbaugh was hired by the Ravens in 2008. Bill Cowher and Brian Billick had their own rivalry, but the Tomlin and Harbaugh, and their teams, have forged a mutual respect, something both of them talked about heading into Sunday’s regular-season finale.