Quinn was hired by the Giants to serve as their assistant special teams coach under Mike Sweatman for the 2006 season.
In 2007, Lawrence Tynes kicked a game-winning 47-yard field goal in overtime to send the Giants to Super Bowl XLII, as they defeated the Green Bay Packers 23–20.
[2] Following the 2017 season, Quinn was fired by the Giants,[3] however, he was re-hired as Assistant Special Teams Coach under Thomas McGaughey after the latter was diagnosed with cancer.
[4][5] Following the 2021 season, Quinn was again relieved of duties by new head coach Brian Daboll.
[9] On February 19, 2024, Quinn was hired by the New England Patriots as their assistant special teams coach.