College Mangurian began his coaching career as the assistant
offensive line coach at
Southern Methodist University in 1979 through 1980. In 1981, he spent one season at
New Mexico State University as their offensive line coach. He then moved to
Stanford University as their offensive line coach in 1982 and 1983 before returning to his alma mater, Louisiana State University, as their offensive line coach from 1984 to 1987. LSU went to four Bowl games during his time in Baton Rouge. Mangurian returned to the college ranks from 1998–2000 as Head Coach of
Cornell University. He later returned to the
Ivy League as Head Coach of Columbia University in December 2011.
NFL Mangurian was hired by head coach
Dan Reeves of the
Denver Broncos in
1988 and served as the team's tight ends/
H-backs coach until before the
1991 season, when he was promoted to the offensive line position. He coached in
Super Bowl XXIV against the
San Francisco 49ers. He also coached in the
Pro Bowl in 1991. Mangurian followed Reeves to the
New York Giants in
1993 as their offensive line coach. He was with the Giants for four years as their offensive line coach. Mangurian again followed Reeves as his offensive line coach, this time to the
Atlanta Falcons. However, after one season, Mangurian left the Falcons to become head coach at Cornell. In
2001, Mangurian returned to Reeves staff in Atlanta as offensive line coach, and was promoted to
offensive coordinator for the
2003 season. The
New England Patriots hired him as their tight end coach in 2005. He was with the Patriots for four years and coached in
Super Bowl XLII against the Giants. He then went on to coach the offensive line for Tampa Bay for two years.
XFL In 2019, Mangurian became the tight ends coach for the
Tampa Bay Vipers of the
XFL under
Marc Trestman. Mangurian was officially hired by the
San Antonio Brahmas on September 13, 2022 Mangurian retired following the 2023 XFL season after the departure of Head Coach Hines Ward. ==Head coaching record==