A league source has told CSN's Derrick Gunn that Castillo has an offer from Reid to be the offensive line coach for Reid's new team, which at the moment looks like it will be the Kansas City Chiefs (see story).
Before being fired as defensive coordinator in October, Castillo had been an assistant with the Eagles since 1995. He served as offensive line coach from 1998 until 2011, when he was stunningly was named defensive coordinator.
After firing divisive defensive line coach Jim Washburn last month, Reid admitted to having dismissed the wrong coach (see story).
I think Juan Castillo is a great person and a fine football coach," Reid said. "Juan will have a long career in the National Football League, and rightly so.