Caldwell adds 2 assistants to Colts' staff

The Indianapolis Colts have hired David Walker as the new running backs coach and Devin Fitzsimmsons as a coaching assistant.

Walker replaces longtime running backs coach Gene Huey, who was fired last month.

Walker coached the running backs at the University of Pittsburgh from 2005 to 2010 and was recently hired as Maryland's running backs coach.

Fitzsimmons coached tight ends at Richmond last season and had previously coached at Virginia and Kansas State.