"The Jets are, all of a sudden, on a high thinking they're going to win a championship," Harrison said on NBC Sports Radio, per ESPN. "You're not going to win a championship, you're not even going to make the playoffs, because you don't have a quarterback. If you go into the season and you're expecting Geno Smith to improve, it's not going to happen. He might get a little better, but when times get tough, when adversity hits, guess what he's going to do? He's going to fold just like the last couple years."