Ron Cook: John Mitchell departs as one of Steelers' most beloved coaches
Retirement of John Mitchell gives Steelers a perfect opportunity
Steelers Assistant HC John Mitchell Retires
Mitchell retires; leaves a lasting legacy
Longtime Steelers assistant John Mitchell retiring at 71
Steelers Longtime Coach John Mitchell Retires - Steelers Depot
Steelers: John Mitchell announces NFL retirement after 29 seasons
Steelers will not retain linebackers coach Jerry Olsavsky - A to Z Sports
After 50-Plus Years in Football, John Mitchell's Legacy Immeasurable: All Things CW - Sports Illustrated Alabama Crimson Tide News, Analysis and More
Longtime Steelers assistant head coach John Mitchell retires
Longtime Pittsburgh Steelers assistant John Mitchell retiring - ESPN
John Mitchell, Steelers assistant head coach, announces retirement
Mike Tomlin, American Football Database