Aaron Glenn began his career as an NFL player after being drafted in the first round in 1994 by the New York Jets. After retiring from the NFL following the 2008 season, Glenn received another NFL opportunity when he was brought in by the Jets to be a personnel scout in 2012.

The New York Jets have hired Aaron Glenn as their next head coach. Could he be heading back to New York as an award-winning boss? It's possible. Prior to Glenn being hired by the Jets, he spent the past four years as the Detroit Lions defensive coordinator.

He becomes the fifth NFL head coach to have a playing history with his current team, after Mike Vrabel (New England Patriots), Jim Harbaugh (Los Angeles Chargers), DeMeco Ryans (Houston Texans) and Dan Campbell, his most recent boss in Detroit.