Morris also was an assistant coach for the Kansas State Wildcats, Washington Redskins, and Los Angeles Rams.

Morris spent one season with the Kansas State Wildcats in 2006, as defensive coordinator under then-head coach Ron Prince.

[7] After starting the season 0–7, Morris earned his first victory as a head coach in week 9 against the Green Bay Packers.

[9] During Week 13 of the 2011 NFL season, against the Carolina Panthers, Morris banished defensive tackle Brian Price to the sideline after Price shoved Panthers guard Mackenzy Bernadeau well after the end of a third-quarter play in which Cam Newton was sacked for a four-yard loss.

The move drew comparisons to then San Francisco 49ers coach Mike Singletary banishing Vernon Davis from the sideline after a personal foul in 2008.

[12] On January 2, 2012, Morris was fired as head coach of the Buccaneers after a 4–12 season, including losing their last 10 games.

[13] On January 11, 2012, Morris was hired by the Washington Redskins as their defensive backs coach, a position he held until the end of the 2014 season.

[16] In the 2016 season, Morris and the Falcons reached Super Bowl LI, where they faced the New England Patriots on February 5, 2017.

[19] On October 12, 2020, Morris was promoted to interim head coach, following the firing of Dan Quinn after an 0–5 start to the season.