Chip Kelly said the opportunity to finally work alongside new Raiders head coach Pete Carroll after the pair had orbited each other as adversaries in previous jobs was a chief reason for his return to the NFL.

The Las Vegas Raiders were in search of a true offensive mind for their offensive coordinator position. Former conference rivals, Pete Carroll and Chip Kelly team up in Las Vegas.

After eight years away from the NFL, Chip Kelly is back. Kelly was hired by the Las Vegas Raiders to be their offensive coordinator under new head coach Pete Carroll, CBS Sports'