(1:54)Open Extended ReactionsINDIANAPOLIS -- Denver Broncos coach Sean Payton didn't have to look far for one of the newest additions to the team's coaching staff. Payton has hired Colorado Buffaloes defensive coordinator Robert Livingston as the Broncos' defensive passing-game coordinator, a source told ESPN's Adam Schefter on Wednesday. Leonhard was hired earlier this month as the Buffalo Bills' defensive coordinator. A source told ESPN's Pete Thamel that Colorado linebackers coach Chris Marve will replace Livingston as Sanders' defensive coordinator. Doug Belk has been hired as the Broncos' defensive backs assistant to replace Addison Lynch.