Referee Mike Carey is leaving his job with the NFL to join CBS. He will have a role similar to what Mike Pereira does for FOX.
http://sports.yahoo.com/news/former-ref-mike-carey-announce-000535276--nfl.html
Carey was hired Tuesday by CBS. He will provide rules analysis, interpretation and explanations
Sean McManus, chairman of CBS Sports, said: ''So many times throughout the years of watching Mike officiate, I often thought it would be great to have him someday work for CBS explaining the calls on the field,'' said McManus. ''We're excited that this has now come to fruition.''
http://sports.yahoo.com/news/former-ref-mike-carey-announce-000535276--nfl.html