The Seattle Seahawks hired defensive line coach Dan Quinn to defensive coordinator, the team announced Thursday. Quinn replaces Gus Bradley, who was named the Jacksonville Jaguars head coach. Quinn spent the past two seasons as the University of Florida's defensive coordinator. Prior to that, he coached the Seahawks' defensive line and was assistant head coach for two years under Jim Mora. When Pete Carroll replaced Mora in 2011, Carroll retained Quinn but Quinn left for Florida. He also served as an assistant with the San Francisco 49ers, Miami Dolphins and New York Jets.