From the NFC North to the AFC East, the firings began almost immediately after the NFL’s first 17-game season concluded.

The Vikings fired coach Mike Zimmer and general manager Rick Spielman on Monday following an 8-9 season. Division rival Chicago parted with coach Matt Nagy and GM Ryan Pace after going 6-11.

And in a relative surprise, Miami dismissed coach Brian Flores, whose Dolphins went 9-8, including a sweep of archrival New England.

Indeed, the career coaching records for each total 130-112-1.

Yet, while in South Florida the Dolphins seemed to be overachievers with a modest roster, both the Vikings and Bears were major disappointments this season.

As were the New York Giants (4-13), and general manager Dave Gettleman retired Monday, though he likely would have been fired otherwise.

One major problem for Minnesota and Chicago resides in neighboring Wisconsin: the Packers. While Green Bay is an NFL power and perennial championship contender, the Vikings and Bears have been more teasing than triumphant.

“We are determined to have sustained success and bring Vikings fans the Super Bowl championships they expect and deserve,” owners Zygi and Mark Wilf said after letting go of Zimmer and Spielman.

Zimmer was 7-8-1 against the Packers, which isn’t bad considering how Green Bay has performed in recent years. It was simply not close to good enough in that division.

The Bears under Nagy were 1-7 against the Pack in the longest running rivalry in pro football. Nagy, the 2018 Coach of the Year, simply was following the path of his predecessors: Chicago’s past six head coaches have had a losing record against Green Bay.

There also has been no evident progress at quarterback in Chicago, and the defense has taken a step backward. The 2018 Khalil Mack trade, Pace’s biggest move, began well and now looks unproductive.

Minnesota’s talent pool seems deeper than Chicago’s, from a high-paid quarterback, Kirk Cousins, with some success to standout runners and receivers.