Daniel Snyder fired the wrong guy early Monday.

If the Redskins owner truly wanted what’s best for his franchise, he would have fired himself, not only his head coach Jay Gruden.

We can only assume that every mirror in Snyder’s home is broken.

In the two decades Snyder has owned the franchise, the Redskins’ record is 139-185-1.

The Redskins have two playoff victories in that span (their last postseason win came in 2005 and their last postseason game was in 2015).

They finished last in the NFC East eight times — and at 0-5 are headed for a ninth by the time this season is complete.

Gruden is the fifth head coach fired in Snyder’s tenure, which began in 1999. The next coach he hires (God help that person) will be Snyder’s eighth head coach. None of the first seven — and that includes proven winners elsewhere, Joe Gibbs, Mike Shanahan and Marty Schottenheimer — had winning records in Washington.

Are you sensing a pattern here yet?

Under the watch of Snyder’s team president, Bruce Allen, who’s been at his post since 2009, the Redskins are 59-89-1.

But this obviously was all Gruden’s fault.

This is not any sort of endorsement for Gruden, who was given ample time — this was his sixth season (longer than any head coach has had under Snyder) — to build something in Washington, yet his 35-49-1 record and one playoff appearance wasn’t enough.

Gruden certainly had his share of bad luck and problems during his tenure.

His Pro Bowl left tackle Trent Williams has been involved in a contentious holdout, which has been a damaging blow to the offense. Expensive defensive players such as cornerback Josh Norman and linebacker Ryan Kerrigan have not performed up to their high salaries as the defense has struggled.

The Redskins, too, have been one of the most-injured teams in the league in the past three seasons, with 52 players placed on injured reserve in 2017 and 2018. This season alone, the Redskins have had 10 players on injured reserve, including starting running back Derrius Guice. Jordan Reed, the Redskins’ top tight end, has been out with a concussion since the preseason.

Here’s the thing, though: Every coach has issues like this. Check out what Jets coach Adam Gase has been dealing with this season, his first with the team.

The bottom line was this situation for Gruden, at 0-5 this season, had become untenable, particularly at the quarterback position. There have been widespread reports out of Washington that Gruden was not in favor of drafting quarterback Dwayne Haskins with the 15th overall pick, but that Snyder and his people wanted Haskins.

When Washington fans, watching other rookie quarterbacks around the league play with some success (including Daniel Jones with the Giants), were calling for Gruden to play Haskins, he stuck with Case Keenum despite repeated poor performances.

Gruden finally replaced Keenum with Haskins against the Giants — out of spite? — and Haskins predictably struggled. It felt like Gruden finally relenting to the rants for Haskins to show everyone how not ready he really was, and the performance proved his point.

Gruden knew he was coaching on a win-now edict, and starting a rookie quarterback he knew wasn’t ready was going to be his death knell in Washington. Now he’s out of a job, and probably relieved about it.

And now the eyes of disgusted Redskins supporters stare at Snyder, who’s shown zero accountability to his loyal fan base during the mess he’s overseen in his 20 years, hiding behind his army of security staff and behind the walls of his expensive home with no mirrors inside.