It's safe to say the Dallas Cowboys haven't had the season they envisioned having when they decided to make a coaching change from Jason Garrett. With the Cowboys on the brink of missing the playoffs, owner Jerry Jones is dumbfounded that Dallas was unable to live up to expectations.

In fact, Jones came into the season thinking this was one of the best rosters he has ever had:

After firing Garrett, the Cowboys hired Mike McCarthy, a coach with a Super Bowl pedigree with the Green Bay Packers. Besides McCarthy, Dallas retained Kellen Moore as offensive coordinator and brought in Mike Nolan to be the defensive coordinator.

Also, the roster of the Cowboys looked to be pretty loaded with talent. The offense, led by Dak Prescott, had weapons like Ezekiel Elliott, Amari Cooper, Michael Gallup, and rookie CeeDee Lamb.

Of course, Dallas also had one of the best offensive line units despite the departure of Travis Frederick. And while the defense lost Byron Jones in free agency, the Cowboys were confident in guys like Jaylon Smith, Leighton Vander Esch, DeMarcus Lawrence, and rookie Trevon Diggs.

However, a season-ending ankle injury to Prescott put a damper on Dallas' season, forcing them to go to Andy Dalton under center. At the same time, the offensive line has been marred by injuries, while the defense hasn't performed well.

There have been rumors that McCarthy could be a one-and-done coach for the Cowboys, which Jones has said is a preposterous assumption. Even though McCarthy's job is safe, it's apparent that Jones realizes that changes need to be made to the rest of the coaching staff and roster for next season.

There's also the question of what will happen with Prescott's future as he continues to recover from his injury. A lot will be answered ahead of next season.