"You wanted Steve Spagnuolo to return to the Eagles, and head coach Andy Reid did too.
In his first press conference of the off-season, Reid revealed he offered Spagnuolo a position on the coaching staff. Spagnuolo instead accepted the Saints' offer to become their defensive coordinator.
Had Spagnuolo chosen to return to the Eagles – he previously served as Reid's assistant from 1999-2006 – Juan Castillo would have remained on the staff – but Reid wouldn't specify whether Castillo would have remained defensive coordinator."