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Another Chiefs banner is here:
"End the blackout - Fire Pioli - SaveOurChiefs.com"
I saw it flying around the stadium.
Funny, there was a Chiefs employee who appeared to be giving a tour to a group of Chiefs fans. He was talking about one part of the stadium and the fans looked out the window and saw the banner! Gotta be an awkward tour.
The shot above comes courtesy of @coopscoop15.