Bradley spent the previous three years with the Tampa Bay Buccaneers, serving the last two as linebackers coach. He was the defensive quality control coach in 2006.

Bradley previously spent 10 seasons as an assistant coach at his alma mater, North Dakota State (1996-2005), including six as assistant head coach (2000-05). He also served as defensive coordinator for the Bison from 1997-2002, and again in 2005.

The Seahawks also named Dan Quinn assistant head coach/defensive line coach. Quinn spent the previous six years coaching the defensive lines for the San Francisco 49ers (2003-04), Miami Dolphins (2005-06) and New York Jets (2007-08).