College Butler began his coaching career as an assistant at his alma mater,
Catholic University, as a defensive backs coach before being promoted to defensive coordinator in 1996. He then progressed to
Texas, where he served as a
graduate assistant under both
John Mackovic and
Mack Brown in
1997 and
1998 respectively. After spending the next four years in the lower levels of college football, he returned to the
Football Bowl Subdivision (FBS) in 2003 with
Harvard, where he worked as the linebackers coach and special teams coach. His first connection to
Ted Roof came from 2007 to 2010 while working for the
Minnesota Golden Gophers as the linebackers coach under Roof. The
Houston Texans hired Butler as a defensive assistant in the off-season, but then was hired by
South Carolina where he served for one year. Butler re-united with Roof on
Bill O'Brien's staff at
Penn State. After Roof moved back to his alma mater at Georgia Tech, Butler was promoted to defensive coordinator over two more experienced assistants, linebackers coach
Ron Vanderlinden and defensive line coach
Larry Johnson.
Professional In early 2014, Butler left Penn State to join O'Brien's Houston Texans staff as secondary coach. On January 2, 2018 he was fired by the Houston Texans. On January 30, 2018 Butler was hired by the
Buffalo Bills coaching staff under head coach and former high school teammate
Sean McDermott. On February 24, 2022, he gained the additional title of passing game coordinator. On February 7, 2024, Butler and the Bills mutually agreed to part ways. ==References==