Juan Castillo ( American football ) Juan Castillo ( born October 8 , 1959 ) is an American football coach . He was defensive coordinator for the Philadelphia Eagles of the National Football League from February 2 , 2011 to October 16 , 2012 when he was fired . He played college football at Texas A & I as a linebacker . He played for the San Antonio Gunslingers of the United States Football League from 1984 – 1985 . He joined the Eagles in 1995 as an offensive assistant . He was promoted to tight ends coach in 1997 , and switched to offensive line coach in 1998 . Early years . Castillo ' s parents moved from Mexico to the United States as teenagers . When he was 12 , Castillo ' s father died after falling off a boat into the Gulf of Mexico while shrimping . Castillo grew up in Port Isabel , Texas , and attended Port Isabel High School where he played high school football as a linebacker . He earned all - state honors following his junior year . College career . Castillo earned a scholarship worth $ 500 to attend Texas A & I after spending a semester at Monterrey Tech . He played college football while enrolled . Professional career . San Antonio Gunslingers . Castillo played for the San Antonio Gunslingers of the USFL from 1984 – 1985 , mainly on special teams . In 1984 , Castillo saw action in six games , making four tackles and three assists . In 1985 , Castillo played in seven games , making eight tackles and registering three assists on a 5 – 13 club . Coaching career . High school . Castillo coached linebackers and was the defense line coach at Kingsville High School from 1986 – 1989 . College . Castillo was the defensive line coach for Texas A & M University – Kingsville from 1982 – 1985 and from 1990 – 1994 he was the offensive line coach . Four offensive linemen he coached ended up in the NFL : Jermane Mayberry , Jorge Diaz , Kevin Dogins and Earl Dotson . Professional . Philadelphia Eagles . The Philadelphia Eagles hired Castillo as an offensive assistant in 1995 under Ray Rhodes . In 1996 , the Eagles drafted Jermane Mayberry , an offensive lineman Castillo coached at Texas A & M University – Kingsville , in the first round of the 1996 NFL Draft . Castillo was promoted to tight ends coach in 1997 , and switched to coaching the offensive line in 1998 . When Andy Reid was hired as the head coach of the Eagles in 1999 , he retained Castillo on the coaching staff . Mayberry earned a Pro Bowl berth in 2002 , and said Castillo " molded me into the player I became . " Castillo coached the offensive line for thirteen seasons , from 1998 – 2010 . Castillo became the defensive coordinator for the Eagles following the firing of Sean McDermott on February 2 , 2011 . The hiring was met with surprise by players , fans , and members of the media primarily because Castillo had not coached the defensive side of the ball since he was at Kingsville in 1989 . Juan Castillo was fired on October 16 , 2012 . He was replaced by Todd Bowles , the team ' s secondary coach and former interim head coach of the Miami Dolphins . Baltimore Ravens . Juan is now the running back coordinator for the Baltimore Ravens and earned a Super Bowl ring in Super Bowl XLVII , when the Ravens defeated the San Fransisco 49ers . Personal . Castillo is married to his wife , Zaida , and have four sons : Gregory , John , Andres and Antonio . Gregory ( born 1990 ) is currently a cornerback at the University of Iowa . John is currently a distance runner at Villanova University , while Andres is a freshman at St . Joseph ' s Prep in Philadelphia , PA and plays quarterback . On August 17 , 1998 , Castillo fractured his left tibia l plateau after he was hit by a utility truck outside of Veterans Stadium . Even though he was on crutches , he still coached practice the following day . In 2002 , Castillo and his wife were invited to a Cinco de Mayo celebration by President George W . Bush at the White House . Port Isabel , Texas declared July 4 , 2009 to be " Juan Castillo Day " and presented Castillo with a key to the city .