[Chiefshrink]

IMHO I don't think there was a miscommunication at all. I think Scandrick's ego was shot and he just chose to play dumb and was going to guard Tyrell come hell or high water because Williams was ballin all night on him. You can see Fuller turn his head to him and communicate to Scandrick and it appeared that Fuller trusted Scandrick's response. Could there have been a legit miscommunication? Maybe but highly unlikely in that situation knowing the game is on the line where everyone must be accounted for before the snap.