Andy Reid’s choice for defensive coordinator will reflect his evolution as coach

The Chiefs are in need of a new defensive coordinator, and who Andy Reid selects to lead the unit will speak volumes about the legendary coach’s evolution.

Step back in time for a moment. It is February 2nd, 2011. After relieving defensive coordinator Sean McDermott of his duties after a 10-6 season, Andy Reid and the Philadelphia Eagles announce Juan Castillo as the new defensive coordinator.

Reid is undoubtedly one of the most successful head coaches in NFL history. As he prepares for the 2019 NFL season, where he will likely eclipse 200 total wins as a head coach, Reid is faced with a decision that could cement his legacy and a place in Canton—or leave the coach muddled with uncertainty…