He served as general manager for the New York Jets of the National Football League (NFL) from 2015 to 2019.
Maccagnan played lacrosse and football in high school and also for Trinity College.
[1] He joined the Washington Redskins scouting department as an intern during the team's training camp in 1990.
He spent one and a half seasons in the Canadian Football League (CFL) as a director of scouting and player personnel for the Ottawa Rough Riders and Saskatchewan Roughriders from 1993 to 1994.
He then joined the Houston Texans shortly after Charley Casserly's appointment as general manager.