One of Dave Gettleman’s mantras is, “You do not quit on talent.”

But ahead of next week’s NFL draft, the Giants general manager suggested it’s overrated.

“Roster building is not just about acquiring talent, but about finding players who fit athletically, intellectually and culturally with what you’re trying to accomplish,” Gettleman said Thursday afternoon from MetLife Stadium.

Gettleman added, in regards to the team’s ever-growing need to find Eli Manning’s heir in the coming days, that, “You’ve got to have a mental toughness to play the position here in New York.”

The second-year GM’s comments also could have been taken as an explanation of the trade of Odell Beckham Jr., who Gettleman stunningly shipped to the Cleveland Browns over the offseason.

While no one could question Beckham’s production, which turned him into a three-time Pro Bowler entering his age-26 season, there were plenty of questions about his character and ability to lead off the gridiron.

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“Obviously there’s a lot of stuff that factors in, but at the end of the day, in order for us to move Odell, the other team was going to have to knock it out of the park,” Gettleman said last month. “We were not actively shopping him.”