Background and career
Brian Michael Daboll ( DAY-bəl; born April 14, 1975) is a Canadian-born professional American football coach who is the offensive coordinator for the Tennessee Titans of the National Football League (NFL). He previously served as the head coach of the New York Giants from 2022 to 2025. Daboll has also previously served as the offensive coordinator for the Cleveland Browns, Miami Dolphins, Kansas City Chiefs, Alabama Crimson Tide, and Buffalo Bills and in various capacities as an assistant coach for the New England Patriots and New York Jets.
Born in Welland, Ontario, Canada on April 14, 1975, Daboll was raised in the United States by his grandparents in nearby West Seneca, New York. Daboll attended Saint Francis High School in Hamburg, New York and was a letterman in football. He was teammates there with future coach Brian Polian and future NFL front office executive Dave Caldwell. Daboll attended the University of Rochester and was a letterman and two-year starter in football as a safety. He graduated with a degree in economics.
Daboll was hired as a restricted earnings coach by the College of William & Mary in 1997 before moving to Michigan State University as a graduate assistant from 1998 to 1999 under head football coach Nick Saban.
Daboll began his NFL coaching career at the age of 24 with the New England Patriots as a defensive coaching assistant in 2000 under new head coach Bill Belichick. After personnel assistant Josh McDaniels was promoted to defensive assistant, Daboll was promoted to wide receivers coach for the Patriots in 2002. After the 2006 season, he left the Patriots to serve as the Jets' quarterbacks coach. The Patriots won three Super Bowls during Daboll's first stint with the Patriots.
In 2007, Daboll joined Eric Mangini's staff with the New York Jets as the quarterbacks' coach. Mangini and Daboll both served as assistants on the Patriots from 2000 to 2005. Daboll coached quarterbacks Chad Pennington, Kellen Clemens, and Brett Favre during his tenure in New York. The Jets fired coach Mangini on December 29, 2008, after the Jets finished 9–7 despite an 8–3 start to the season. Daboll was not retained under new head coach Rex Ryan.
In 2009, Daboll joined the Cleveland Browns as offensive coordinator, reuniting with Mangini, whom he worked alongside in New England and on the New York Jets. Under Daboll, the Browns had the NFL's 32nd ranked offense in 2009 and the 29th ranked offense in 2010.
