The Bills made it official Thursday, announcing the team's new offensive and defensive coordinators on Doug Marrone's staff.
Nathaniel Hackett will be the Bills new offensive coordinator. He called plays for Marrone in Syracuse this past year in the same role. Just 33 years old, Hackett's attack set a number of records at Syracuse.
This marks his second stop with the Bills. Hackett served as a quality control coach under Dick Jauron.
Mike Pettine was officially named the Bills defensive coordinator. He served the same post with the Jets the last four seasons, where Pettine's defense ranked in the top 10 in yards allowed every season.