^^it's possible. chicago's o-line still sucks and all it would take is for Cutler to have a bad game and it's a wrap. Chicago hasn't been able to establish a run game yet so if cutler is playing poor their offense is pretty much useless.
Chicago's defense is #1 against the run after two games though and GB doesn't have much of a running game either, so the same could be said if Rogers has a bad game.
I think that's what it's going to come down to - which QB will have the better game, turnovers and special teams could be the x factor.