Philadelphia Eagles head coach Nick Sirianni has the best winning percentage (.702) of any coach in franchise history. He led the Eagles to the playoffs in each of his four seasons, including a Super Bowl appearance in his second season.

Now, Sirianni has led Philadelphia to its second Super Bowl, something no other coach in the franchise's history has done.

Yet just a few months ago, despite all this success, Sirianni seemed more likely to lose his job and then lead the team deep into the playoffs again.

Questions about his job security began late last season. The Eagles are off to a 10-1 start, rebounding from last season's Super Bowl loss to the Kansas City Chiefs. But they finished the 2023 season with a 1-6 record, including a lopsided loss to the Tampa Bay Buccaneers in the first round of the playoffs.

Philadelphia recalled Sirianni amid buzz about his job status, and that conversation became clearer after the Eagles got off to a 2-2 start.

“It’s time to hire an adult,” Fox Sports’ Colin Cowherd said in early October.

"It wouldn't be a shock if Sirianni soon found himself the guy on the unemployment line next to Saleh," USA Today's Nate Davis wrote. It was New York Jets coach Robert Saleh who was fired mid-season.

It didn't help that Sirianni got into an argument with a Philadelphia fan on the sideline toward the end of a lackluster win over the Cleveland Browns on Oct. 13.

On top of that, Sirianni reportedly has a strained relationship with quarterback Jalen Hurts, which the two tried to work out during the team's bye week this season.

There were clear warning signs that Sirianni’s days with the Eagles were numbered. The embarrassing ending to last season, the public calls for his firing, the strained relationship with the team's star quarterback, the run-ins with fans -- all of that is true.

But Sirianni then did something that could cure them all at once: He kept winning.

After a sluggish start, the Eagles dominated the rest of the regular season, finishing with a 12-1 record. (Their only loss was a three-point road loss to the Washington Commanders, a game in which they left early with a concussion.)

Injured running back Saquon Barkley, a free agent, led the team to the NFC East title as the league's second-best rushing attack. Led by veteran Vic Fangio, the team's defense led the NFL in yards allowed per game in its first season.

Now, Sirianni's team is heading to the Super Bowl for the second time in three seasons. Philadelphia will get a chance against a young, up-and-coming Commander squad. The last time these two teams met in Philadelphia, the Eagles won 26-18. Buckey rushed for 146 yards and two scores, while Washington was limited to 264 yards.

Sirianni couldn't avoid the noise surrounding his job during the season, but to his credit, he didn't seem to let it get to him.

"You obviously heard it, you have to be ready for the media and I have to answer questions," Sirianni told Sports Illustrated's Albert Brill in December. "But I also have to walk the talk. If I'm going to tell these people not to listen when word comes out that we're bad, or word comes out that we're really good, then I need to do the same thing. That's what I do Everything. ... My job is to lead this football team and our captains and leaders and put their heads down and go to work.”

Has Sirianni earned more patience to move forward? It's not that simple.

After all, Philadelphia fired head coach Doug Pederson just three seasons after he won the only Super Bowl in franchise history. (Pederson was plucked from Chiefs head coach Andy Reid's staff, and the Eagles fired him after the 2012 season.)

Another bad stretch or tension with an injury could become an issue for Sirianni again in the future. But it would be difficult for Philadelphia, or any team, to find a coach with as many wins as Sirianni.