It's never been clearer: In order to succeed in the NFL, a team has to have a great head coach. Everything flows from the head coach: philosophy, X's and O's, assistant coaches and player personnel.
The head coach is the on- and off-field face of the franchise and has more media responsibilities than ever before. The head coach sets the tone, sets the bar and sets the table.
That's why one-quarter of the NFL—eight of 32 teams—fired their head coach after this season; they didn't have the right guy.
So how did the teams do in filling their vacancies? Did they make the right choice?