Cam Newton struggled in the Panthers' sixth straight loss. Is he at the root of the team's issues, or does the blame belong somewhere else?
Rivera or Cam: Who's to Blame for Panthers' Struggles?
The once 6-2 Carolina Panthers are in the midst of a four-game slump. SI Now NFL analyst Tiki Barber weighs in on the struggling team and shares why Cam Newton should shoulder most of the blame.