Larry Rothschild, the longtime Yankees pitching coach, was fired on Monday in the first significant move of this Yankees offseason.

Rothschild had been the Yankees pitching coach since 2011.

“Larry cares deeply about his craft and the pitchers under his tutelage, and he played a significant role in our successes over the past nine seasons,’’ general manager Brian Cashman said in a statement. “There’s a reason why Larry has had the type of distinguished baseball career he’s had, and it starts with experience and dedication that is difficult to emulate.”

Rothschild could wind up elsewhere. He was Joe Girardi’s pitching coach for the Yankees from 2011-17 and hours after Rothschild’s firing became official, Girardi was introduced at a press conference in Philadelphia as the Phillies’ manager. Girardi didn’t rule out a possible reunion.

“I thought he did a great job there,’’ Girardi said Monday of Rothschild’s time in The Bronx.

“The game has evolved and Larry continues to evolve,’’ Girardi said. “Obviously, Matt [Klentak, Phillies GM] and I have a couple of positions that we need to fill and we are gonna talk about every name that is out there and get who we think is the best person for Philadelphia. … Obviously, I have close ties to Larry and we’ll discuss everything.’’

Regardless of what happens with the Phillies, it was not Rothschild’s choice to leave the Yankees.

The 65-year-old had a year left on his three-year contract. He loved being the Yankee pitching coach. But the Yankees are moving more and more toward a more analytic/technological mode in developing their pitchers and preparing them for games. Rothschild was not resistant to modernity — he used the newer-age items as part of his prep work. However, he was considerably more old school than new school.

The Yankees hired Sam Briend midseason to be their director of player development and run their minor league pitching operations. Briend was working with Kyle Boddy’s Driveline Baseball, a training performance outfit that employs a sabermetric approach to measure velocity and conditioning.

Following Briend’s addition, longtime minor league pitching coordinator Danny Borrell left in August after more than a decade with the Yankees to become the pitching coach at Georgia Tech. He was credited with the development of Domingo German and top prospect Deivi Garcia.

And Scott Aldred, who served as the Yankees’ pitching coordinator, was among five minor league coaches let go after the minor league season last month. Borrell worked with the lower level teams in the system and Aldred with the upper teams.

Amid many injuries, the Yankees produced a 4.31 ERA during the regular season, 14th in the majors. They had a 2.87 ERA in the playoffs, but it wasn’t enough for the Yankees to get to the World Series.

“Larry is someone I leaned on extensively over these past two years,’’ Aaron Boone said in a statement. “I’m truly grateful that I had someone as established and loyal as Larry as I made my transition to the dugout. Seeing him work day after day, I have a deep appreciation for how devoted he was to his craft and how tirelessly he dove into his responsibilities.’’

During Cashman’s season-ending press conference last week, he said, “Pitching is not what cost us that series with the Astros — at least, that’s my opinion. I felt that our hitting with runners in scoring positions is what sent us home.’’

Cashman and Boone didn’t specify a reason for the decision to move on as they enter an offseason in which Gerrit Cole, among others, will be available to upgrade their rotation.

The Yankees have not indicated whether the rest of Boone’s coaching staff will return.