By the Tuesday after the Wild Card Round, Zac Taylor of the Bengals remained the only head coach in the AFC North. The Browns and Ravens fired Kevin Stefanski and John Harbaugh, respectively, shortly after their seasons ended unsuccessfully. In Pittsburgh, Mike Tomlin resigned from his post as the head coach of the Steelers.
Of course, the Bengals have been something of a model of consistency, similar to the Steelers, in terms of stability. Before Zac Taylor, they had one head coach for 16 years in Marvin Lewis. And Lewis never even won a playoff game, making the postseason seven times.