FLORHAM PARK, N.J. — There was a point during this offseason program when Aaron Glenn knew he had them, when the head coach sensed his players were with him. He’d been working them hard all spring, through chilly rains and parching heats, with period after period of “competes” and grinding efforts and attention to details. But during a recent lull for the starters he had walked over to chat with linebacker Quincy Williams and was told the good news.

“He said: ‘Coach, the reason I know that things are changing is because there was no [complaining] about how we’re doing things,’ ” Glenn said Williams told him.

Glenn spent the last few months performing a culture transplant for the Jets. As with all such operations there is a risk of rejection. The new piece — be it an appendage or an attitude — may not be a perfect fit and not accepted by the body. That’s especially the case when the original limb had decayed as grotesquely as the one the Jets had to remove. Gang Green had become gangrened.

But that didn’t happen here. The procedure was a success.

There’s only one thing still missing though: Wins. And when the team comes back to training camp in a month and a half, that will become the new focus.

“I think the players understand exactly what we are trying to accomplish, but I do understand there is a lot more work to be done,” Glenn said on Thursday after the team wrapped up its mandatory minicamp. “Listen, we’re ripping pages out of some situations that we want to get better at and we want to create our own narrative and write our own book. That’s what the focus will be on in training camp. How do we rip the pages out of situations we don’t like and make sure we start writing the narrative of how we are going to operate so that when it’s all said and done this is going to be a book that a lot of people would like to read.”

So far the main characters are all reciting their lines and hitting their marks to perfection.

“I want to win, I want to be a part of changing the organization,” cornerback Sauce Gardner said on Thursday of his attendance and participation at these practices while he and the front office work through a potential contract extension. “We have a new regime . . . I feel like they are doing a great job of changing the culture for sure.”

Added linebacker Jamien Sherwood: “What we have been able to put together and create with this new foundation, to me, it looks good . . . It’s all about just buying in.”

It helps that Glenn seems to understand when to push and when to ease up. Take Thursday for example. It was the last day of work on the field and Glenn dialed back the physicality. The position groups each broke into separate field day-like events, competing against each other like little kids. There was even an extended chunk of time spent allowing the offensive linemen to run routes and for the receivers and running backs to throw passes. The workout actually looked . . . fun.

“It was time to give those guys a chance to do that,” Glenn said. “They have worked their [butts] off this whole offseason.”

Anyone look good enough to have a merit a pass their way in an actual game?

“Absolutely not,” Glenn said, laughing. 

Thursday’s tone surprised cornerback Michael Carter, who described Glenn as “super-intense” and came in ready for another day of work and not the last-day-of-school vibe he got.

“It’s one way and he demands us to be the best player,” Carter said, “but in the same way he tells us to trust the process and he’ll take care of us. That’s kind of what happened today. It’s going to be hard, a lot of hard work, but as long as you trust the process, all the benefits will come with that.”

That includes some goofy drills, some less taxing days, but more importantly the victories that have eluded the Jets for way too long.

Before the loose shenanigans on the field, Glenn delivered a message to the team more in line with his stern, direct persona. It’s one he hopes will echo with them for the next six weeks. He wanted them to recognize the habits they had picked up since early April and maintain them for when they come back.

“This whole deal has been about our process, how we want to operate as a team from who we want to be to how we want to do it,” Glenn said. “I hate that things are ending now and we have to take this month off. I understand it. But guns are blazing once we get back here for training camp.”

That will start on July 22, when the season and this era will start in earnest, and when their newly installed culture, looking healthy at this point, will be put to its true test.