The Buffalo Bills have officially appointed Jim Leonhard as their new defensive coordinator, marking a significant addition to rookie head coach Joe Brady’s leadership team. Leonhard, a former NFL safety who began his playing career in Buffalo, returns to the franchise after a successful coaching stint with the Denver Broncos. His promotion follows a rapid rise through the coaching ranks, including prior experience as a highly regarded defensive play-caller and interim head coach at the University of Wisconsin. This strategic hire aims to elevate a defense that helped Denver reach the AFC Championship last season. Alongside new offensive coordinator Pete Carmichael Jr., Leonhard is expected to help steer the team toward a Super Bowl title. In addition to the Bills' news, the report highlights various coaching changes and updates across the league as teams prepare for the upcoming season and Super Bowl LX.