PHILADELPHIA – Chris Wilson, who coached Fletcher Cox at Mississippi State, joined the Philadelphia Eagles as defensive line coach.

Eagles head coach Doug Pederson announced the hiring of Wilson at the Senior Bowl.

The 46-year-old Wilson had just taken a coaching job at the University of Missouri before getting this opportunity. He came to Missouri from USC. Wilson has coached at the college level for 22 years.

Wilson replaces Jerry Azzinaro, who held the title of assistant head coach as well as defensive line coach. Azzinaro was close to former Eagles head coach Chip Kelly and followed Kelly from Oregon to the NFL. Azzinaro left to work for Kelly with the San Francisco 49ers.

Under Azzinaro, the Eagles ran a 3-4 defense. Cox, who is preparing to play in his first Pro Bowl this week, played defensive end in that alignment. He is likely to move back to defensive tackle in a 4-3 scheme under new defensive coordinator Jim Schwartz.

Pederson also told reporters in Mobile, Alabama, that he has hired Joe D’Orazio to work with new wide receivers coach Greg Lewis. D’Orazio, a 2011 graduate of the University of Pennsylvania, spent the last two seasons as an assistant on Andy Reid’s staff with the Kansas City Chiefs.

The hiring of Wilson fills the last vacant position coaching spot on Pederson’s staff. Pederson could still add lower-level assistants to his staff.

Wilson, 47, has coached at USC, Oklahoma and Colorado as well as Mississippi State. Wilson played linebacker at Oklahoma before beginning his coaching career.