Tom Landry
Super Bowl XXI as special teams coach of the New York Giants, Super Bowl XXV as defensive line coach of the New York Giants, and Super Bowls XXXVI, XXXVIII, and XXXIX as defensive coordinator of the New England Patriots.
Tom Landry was a player and defensive coach for the New York Giants before he joined the Cowboys as head coach in 1960. Also, Dallas interim head coach Jason Garrett was a quarterback for the Giants from 2000 to 2003.
2004
All as coach. He was the New York Giants special teams coach in Super Bowl XXI and defensive line coach in Super Bowl XXV. He was the New England Patriots defensive coordinator in Super Bowls XXXVI, XXXVIII, and XXXIX.
Jim Fassel was the head coach of the New York Giants in 2002.
Jim Fassel was the head coach of the New York Giants in 2003.
Tom Coughlin was the head coach of the New York Giants in 2006.
Tom Coughlin was the head coach of the New York Giants in 2008.
Tom Coughlin was the head coach of the New York Giants in 2004.
In 2011, Tom Coughlin was the New York Giants head coach.
Jim Fassel was the head coach of the New York Giants in 2000.
The New York Giants and Dallas Cowboys are two of the most historic teams in the NFL. The teams also have a link. Tom Landry played for the New York Giants before he became the legendary head coach of the Dallas Cowboys.