The Giants brought Dave Gettleman back to the organization in 2018 to fix a franchise in need of repair. After four full seasons filled with more losing than any other four-year span in team history, someone had to pay the price, and on Monday, one day after another miserable season came to an end, Gettleman’s time with the team came to an end.

The only question was when this would come down. The Giants said that Gettleman within the past few days informed co-owners John Mara and Steve Tisch that he was retiring — fully cognizant he was going to be fired.

The Giants finished 4-13 this season and were 19-46 in Gettleman’s tenure running the football operations. A search for his replacement is already underway. The Giants have asked for permission to speak with Joe Schoen, the Bills’ assistant general manager; Ryan Poles, the Chiefs’ executive director of personnel, and two members of the Titans’ front office, Monti Ossenfort (director of player personnel) and Ryan Cowden (vice president of player personnel). The Giants also requested interviews with two members of the 49ers front office — assistant GM Adam Peters and director of player personnel Ran Carthon, who is the son of former Giants fullback Maurice Carthon — as well as Cardinals vice president of pro personnel Adrian Wilson, a former NFL safety.

Kevin Abrams, the Giants’ vice president of football operations and assistant general manager, is not a candidate to replace Gettleman. Abrams is respected in the building and it remains to be seen if he has a role as a salary-cap analyst moving forward.

“It was a privilege to serve as the general manager of the New York Giants the last four years and to have spent so many years of my career with this franchise,” Gettleman said in a statement. “We obviously have not had the on-the-field success I expected, and that is disappointing. However, I have many fond memories here, including two Super Bowl victories, and I wish the team and organization only the best moving forward. There are many good people here who pour their souls into this organization. I am proud to have worked alongside them.”

The fate of head coach Joe Judge (10-23 in two seasons) will be determined in the coming days.

The Giants in finding a successor to Gettleman will likely break the chain of “in the family’’ hires for their general manager position.

Schoen has worked in scouting for the Panthers and Dolphins and has been Brandon Beane’s right-hand man in Buffalo. Poles has been with the Chiefs for the past 12 years and is considered a riser in the industry. It will not hurt him that he played guard at Boston College — Mara’s alma mater. Ossenfort was with the Patriots for Judge’s entire eight-year span as an assistant and special teams coordinator and the two have a strong relationship.

“This will be a comprehensive search for our next general manager,” Mara said.

Mara and Tisch praised Gettleman’s “highly accomplished 35-year career.’’

Tisch said: “It is an understatement to say John and I are disappointed by the lack of success we have had on the field. We are united in our commitment to find a general manager who will provide the direction necessary for us to achieve the on-field performance and results we all expect.”

There are a litany of unfortunate or flat-out poor personnel moves that doomed Gettleman. His first draft pick was Saquon Barkley, a running back taken No. 2 overall in 2018 at a time when the value of taking a running back so high in an draft was debatable. Gettleman in 2019 made the unexpected selection of quarterback Daniel Jones at No. 6 overall. Gettleman saw in Jones a younger, more athletic version of Eli Manning but it has not transpired that way.

Guard Will Hernandez and linebackers Lorenzo Carter and Oshane Ximines were Day 2 picks who did not deliver as expected. Trading up in the first round for cornerback Deandre Baker in 2019 was a disaster. In free agency, the desperation in signing left tackle Nate Solder to a $62 million contract proved to be money not-well spent.

The Giants did not select an offensive lineman with any of their six 2021 draft picks, which Gettleman explained thusly: “It’s really apparent that we have a little more confidence in our offensive linemen than you guys do.’’ This was a miscalculation.

Gettleman has been part of seven Super Bowl teams and three Super Bowl-winning teams, including the Giants after the 2007 and 2011 seasons.

Gettleman was the Panthers general manager from 2013-2017 and helped construct a Super Bowl team. He returned to the Giants in 2018 and said, “There’s always hope and I’d like to think that if you look at my résumé, you think I’ve got a chance. So just hang in there with us, and we’re going to get it fixed.”

It did not get fixed, which is why Gettleman is gone and the Giants are looking for a new general manager.