He doesn't look like the same player. He's more tentative, and appears to be avoiding contact. With the Jets bringing lots of pressure on Sunday, he kept stepping away and throwing awkwardly. And he really was the same against the Bills.
Oh, and the team makeup doesn't appear to be the same, either. I have to wonder if the GM going to KC has something to do with it. I can't imagine that he would have traded Ricahrd Seymour a week before the season.