In a stunning move, the Eagles have named their offensive line coach Juan Castillo to be the team's next defensive coordinator, a league source told The Inquirer.
Howard Mudd, considered one of the best offensive line coaches, will replace Castillo as the Eagles' offensive line coach.
The team later made the moves official.
Castillo has been the Eagles offensive line coach for more than 15 years. He was, however, once a linebackers in the USFL. The Eagles are known for promoting within, but the move is a shocker and will be questioned by many.