Forrest Gregg compiled a career record of 75–85 as an NFL coach. Forrest Gregg learned the game under Bart Starr, Lisle Blackbourn, Mike Ditka. The Forrest Gregg coaching tree includes Frank Gansz, Hank Bullough, Raymond Berry, Tom Coughlin, Walt Corey.
Mentors: Bart Starr, Lisle Blackbourn, Mike Ditka, Nick Skorich, Phil Bengtson, Tom Landry, Vince Lombardi
Coaching tree: Frank Gansz, Hank Bullough, Raymond Berry, Tom Coughlin, Walt Corey