Key Facts

• The Kansas City Chiefs have removed assistant coach Mark DeLeone from their coaching staff.
• DeLeone was recently working as the assistant running backs coach for the Chiefs.
• This move is part of a larger overhaul of the Chiefs' coaching staff.
• The change is happening after the Chiefs did not make the playoffs in the 2025 season, which was a rare event for them in over a decade.
• Mark DeLeone has a history of working in different coaching roles, including defensive positions with other NFL teams like the Baltimore Ravens and Chicago Bears.
• The Chiefs are not expected to make an official announcement about this change, but insiders and the team's website confirm his departure.
• Head coach Andy Reid is driving these changes to bring new perspectives and accountability to the team.
• The Chiefs' staff overhaul includes changes in positions like running backs coach and other offensive roles.