The Green Bay Packers have a new defensive coordinator. The Philadelphia Eagles have new offensive and defensive coordinators. They’ll add even mystery to the great unknown that is Week 1.

  Toggle Menu Green Bay Packers defensive coordinator Jeff Hafley is shown during training camp. | Tork Mason / USA TODAY NETWORK SI – Green Bay Packers – NFL Coordinator Changes Add Layer to Packers-Eagles Showdown Green Bay Packers defensive…