The Atlanta Falcons reached an agreement with Seattle Seahawks defensive coordinator Dan Quinn early Monday morning on a five-year deal to be their new head coach, according to multiple reports.

Quinn, who has been reported to be the Falcons’ head-coach-in-waiting for a few weeks, was expected to fly to Atlanta on Monday with team officials, including owner Arthur Blank, and introduced at a Tuesday news conference, sources told ESPN.

The Falcons could not finalize the deal with Quinn until after the Seahawks finished competing in Sunday’s Super Bowl in Glendale, Ariz. After the Seahawks’ 28-24 loss to the New England Patriots, Quinn would not discuss the move.

“In respect to this game, what a terrific game we were all a part of,” Quinn said. “So for tonight I’d like to make the focus all about our players, both teams. It was a great contest. You could see how hard guys played. As a coach, that’s really what you’re looking for, great effort first. … You see the guys in the locker room, they gave everything they had. You can’t ask for more than that as a coach.”

Quinn, 44, spent the past two seasons as the Seahawks’ defensive coordinator after holding the same position at the University of Florida.

“It really wasn’t a time for that,” he said when asked whether any of the Seahawks players discussed his move. “It was more how do we come to grips with this. It was such a hard time at the end. Just my respect for so many of these players is so high, and we’re so connected. I really feel for them. They put everything they had into this.”

Blank has implied that Quinn would have control of the Falcons’ 53-man roster when he was asked about wide receiver Julio Jones getting a long-term contract.

“Well, I think it’s a decision that the head coach will look at the talent on the roster,” Blank told ESPN.com. “Julio’s been a great player for us and a great talent, and he represents us on the field and off the field as well as anybody else. As the owner, it’s not my decision to make. The new coach will spend a great deal of time assessing the roster and all of our players, and obviously Julio is a critical one.”

Some parts of Quinn’s new staff are already in place, with Kyle Shanahan set to be his offensive coordinator and Richard Smith as the defensive coordinator. Raheem Morris, will be the assistant head coach in charge of defensive backs.

According to ESPN, Quinn also will retain at least four members of the previous coaching staff: special-teams coordinator Keith Armstrong, defensive line coach Bryan Cox, wide receivers coach Terry Robiskie and former assistant offensive line coach Wade Harman, who will now coach the tight ends.

Quinn was on Jim Mora Jr.’s coaching staff with the Seahawks in 2009 after breaking into the NFL four seasons earlier as defensive quality control coach of the San Francisco 49ers.

When Pete Carroll was hired in 2010, he interviewed Quinn and decided to retain him as defensive line coach. A year later, Quinn left to become defensive coordinator at Florida, where he felt the move was necessary to eventually earn the coming opportunity to be a head coach.

When Gus Bradley, Carroll’s first Seattle defensive coordinator, left to become coach of the Jacksonville Jaguars two years ago, Quinn was hired to replace him.