Paul Gutierrez ESPN Staff Writer
The Raiders have a new strength and conditioning coach in A.J. Neibel, who spent the past two seasons with the Jaguars as their athletic performance specialist/physical therapy assistant. Neibel, who replaces Tom Shaw, was with the Raiders as a strength and conditioning intern in 2003 and spent six years in Oakland. He has since worked for MLB's San Francisco Giants (2009-10) and the NFL's Atlanta Falcons (2011-16). Jon Gruden's coaching staff has undergone numerous changes this offseason with running backs coach Jemal Singleton joining the Bengals in the same capacity, defensive backs coach Derrick Ansley going back to college to become a defensive coordinator at Tennessee and assistant defensive line coach Marco Coleman heading to his alma mater at Georgia Tech. Earlier this offseason, QB coach Brian Callahan left to become the Bengals' offensive coordinator and Gruden hired Brentson Buckner as DL coach with Mike Trgovac reassigned in the organization.