Harold Wade Phillips was born in Orange, Texas, and was a three-year starting linebacker at the University of Houston. The son of longtime NFL coach Bum Phillips, he began his NFL career in 1976 on his father’s Houston Oilers staff. He has coached ever since — more than 50 years in the profession, and more than four decades in the NFL.
He is best known as a defensive coordinator, especially for his work in the 3–4. He has held that job in eight stints with seven franchises, including two tours in Denver. As a head coach he led the Denver Broncos, Buffalo Bills, and Dallas Cowboys, and served as interim head coach for the New Orleans Saints, Atlanta Falcons, and Houston Texans. His NFL regular-season record as a head coach is 82–64.
The 2015 Denver defense, which Phillips coordinated, led the NFL in yards allowed (283.1 per game) and ranked fourth in points allowed (18.5). That unit won Super Bowl 50, 24–10, over the Carolina Panthers on February 7, 2016, in Santa Clara. Linebacker Von Miller was named Super Bowl MVP. Phillips was the Associated Press NFL Assistant Coach of the Year in 2015.
He later coordinated the Los Angeles Rams defense from 2017 to 2019, including Super Bowl LIII. In recent years he has also been a head coach in the XFL and UFL, and he contributes to The 33rd Team, a football think tank of former coaches and executives. His memoir, Son of Bum, was published in 2017. He was inducted into the Texas Sports Hall of Fame that same year.