NFL regular season is complete and in the rear-view mirror as it's time to move into offseason mode for 18 of the NFL's 32 teams. Realistically, some of them have already done so -- especially those who have made changes at the head coach or general manager positions.

The first day after the end of the NFL season is known as "Black Monday" but the reality is news relating to coaching and front office firings comes throughout the course of the entire week and it comes in bunches.

Hiring a head coach in the NFL is hard enough. Projecting how an assistant will do as a head coach is even harder. Yet that’s how the Bears have operated for almost the entirety of their 105-year history.

Many NFL teams hope to land the next Sean McVay when they seek a new head coach. McVay became the youngest coach since the AFL-NFL merger in 1970 when the Los Angeles Rams hired him in 2017 at age 30. He’s led them to one Super Bowl title in two appearances, four NFC West championships, six playoff berths and seven winning seasons in eight years.

Sports compiled the hometowns and colleges of every full-time NFL head coach since 1970. Here's what we found.

There are six head coach vacancies to be filled, including the Bears and Patriots. We ranked them from best to worst.

USA Today's NFL reporter Tyler Dragon shares his thoughts on who will fill the coaching vacancies in the NFL this year.

A quick assessment of the coaching opportunities available to Ben Johnson, Mike Vrabel and the other candidates