I hate to beat this to death but before the "hit", TE wouldn't stare down his receivers who were lined up in bunch formations and only throw to them. Lately, he won't even look at a WR isolated on the other side even on the presnap!!!
Hell on 4 receiver formations he wouldn't key on anybody after the snap prior to "that game". That's why he was so dangerous completing nearly 80% of his throws. He always threw to the open man even if he was positioned in the middle of the field in front of a LB or S but now he won't even do that.