College Staley began his coaching career as a
graduate assistant at
Northern Illinois University from 2006 to 2008, working with the team’s secondary in 2006 and 2007 and working with the linebackers in 2008. He also assisted with special teams for all three seasons. In 2009, he was hired as the defensive line and assistant special teams coach for the
University of St. Thomas. In 2010, Staley was hired as the co-defensive coordinator and linebackers coach for
Hutchinson Community College. He added the title of associate head coach to his duties for the 2011 season. He spent the
2012 season at
Tennessee as a graduate assistant, working with inside linebackers and special teams. Staley then spent three seasons (2013, 2015, 2016) as the defensive coordinator/secondary coach with
John Carroll University (Ohio). Staley spent 2014 as the defensive coordinator and linebackers coach at
James Madison University (Virginia). Staley was announced as the Defensive Coordinator of the
Chattanooga Mocs (Tennessee) in January 2017, but would step away from this role within the same month to pursue NFL opportunities.
Chicago Bears In 2017, Staley was hired by the
Chicago Bears as their outside linebackers coach.
Denver Broncos On January 15, 2019, Staley was hired by the
Denver Broncos as their outside linebackers coach, reuniting with then-head coach
Vic Fangio.
Los Angeles Rams On January 16, 2020, Staley was hired by the
Los Angeles Rams as their defensive coordinator, replacing
Wade Phillips. In his lone year as defensive coordinator, Staley helped guide the Rams defense to first in points and total yards allowed, positioning himself as an attractive head coaching candidate around the league.
Los Angeles Chargers On January 17, 2021, Staley was hired as head coach of the
Los Angeles Chargers, replacing
Anthony Lynn. On September 12, 2021, Staley made his head coaching debut against the
Washington Football Team and led the Chargers to a 20–16 road victory. Staley led the Chargers to a 9–7 record through the first 16 games of the
2021 season. However, against the
Las Vegas Raiders in Week 18 in a
win or tie or go home situation, Staley came under scrutiny for two decisions during the game. The first involved a failed fourth down conversion on the Chargers' own 18-yard line, giving the Raiders a short field, which they would score on to extend their lead to six. The second was calling a timeout with 38 seconds left in the overtime period with the Raiders at the Chargers' 39-yard line. Staley claimed that he called the timeout to get the right defensive personnel on the field as the Raiders were running the ball. Following the game, there was conjecture that the timeout proved to be costly for the Chargers as the Raiders kicked a 47-yard field goal as time expired, winning 35–32, and eliminating the Chargers from playoff contention. However, when discussing the moment on a podcast, Raiders' interim head coach at that time
Rich Bisaccia stated that "the timeout was really irrelevant". In the
2022 season, Staley led the Chargers to a 10–7 record, finishing in second place in the AFC West. The Chargers finished as the #5-seed in the AFC and played the #4-seed 9–8
Jacksonville Jaguars on January 14, 2023, in the
AFC Wild Card round. The Chargers roared out to a 27–0 second quarter lead, but the Jaguars came back to win the game 31–30 with a field goal as time expired. It was the third-largest comeback in NFL playoff history. After a 5–9 start to the
2023 season and losing 63–21 to the Raiders on
Thursday Night Football in Week 15, Staley was fired on December 15, 2023 along with general manager
Tom Telesco. The Chargers-Raiders game set a Chargers franchise record for most points allowed in a single game, along with a Raiders franchise record for most points scored in a single game (doing so just four days after playing in one of the lowest-scoring NFL games in league history, in a 3–0 loss to the
Minnesota Vikings).
San Francisco 49ers On March 2, 2024, Staley was hired by the
San Francisco 49ers. His role as assistant head-coach was revealed on May 22.
New Orleans Saints On February 21, 2025, Staley was hired by the
New Orleans Saints as their new defensive coordinator under head coach
Kellen Moore, whom Staley worked with when he was head coach of the Chargers. ==Head coaching record==