13 weeks into the NFL season and it feels like everything we thought we knew has been turned upside down. This weekend’s action started with a Thanksgiving Day slate where every single underdog came out on top, continued with a Black Friday beatdown in Philadelphia, and wrapped up with enough chaos to make your head spin. The Panthers are alive in the NFC South, the Colts are suddenly vulnerable, and Shedeur Sanders is finding out that winning in the NFL is slightly harder than playing for Deion at Colorado. It was a week that reinforced just how brutal the stretch…