The Buffalo Bills announced that they've added Jeff Hafley to their coaching staff as a defensive assistant.

Hafley spent the previous two seasons on the Tampa Bay Buccaneers' coaching staff. He was the team's safeties coach in 2013.

Before entering the NFL ranks as an assistant coach, Hafley spent 11 years coaching college ball at Worcester Polytechnic University (2001), the University of Albany (2002-05), the University of Pittsburgh (2006-10) and Rutgers University (2011).

Follow me on Twitter: @RavensInsider

Aaron Wilson covers the Ravens for The Baltimore Sun.