The Dallas Cowboys will have a new man in charge of the defense next year.

Dallas fired defensive coordinator Mike Nolan, per Jay Glazer of FOX, ending a rather unsuccessful one-year stint with the Cowboys.

Cowboys owner Jerry Jones had previously been rather mum on Nolan's status, but it did not take long for the team to part ways with Nolan.

Dallas ranked 23rd in total yards allowed and 28th in scoring defense. The front seven was powerless against the run (giving up 5.0 yards per carry) while also allowing a ton of big plays in the passing game.

Jones attributed the big plays to a lack of discipline during a Tuesday interview with 105.3 The Fan, which might explain in part why Nolan was shown the door:

“There’s not but one way to face this thing and that’s work, intense work,” Jones said, via Calvin Watkins of the Dallas Morning News. “Forget the people’s names on the positions. It’s just going to take a lot of work. People are going to be just as resolved as we are, that’s what makes this game so great. A lot of ways to make this thing happen. I’ve got all the incentive in the world to win and make winning decisions. No one shoves it out there and bets it as much as we bet it to win a ballgame or have our fans excited about the team.”

While Nolan is on his way out, both Jerry and Stephen Jones have stood by head coach Mike McCarthy.

There will not be a total coaching overhaul in Dallas this offseason, but the Cowboys will need to make some changes on the defensive side if they hope to get back to the playoffs in 2021.