This game turned early, when Will Allen made a break on the ball and took it in for a score.
CBS pointed out that this has happened in 5 of the last 6 meetings between these teams, but I would say this was unexpected.
It was such a simple play, because Cutler telegraphed his throw (he was looking at the receiver the whole way), and he threw it kind of soft. All Allen had to do was make a break on it, and he was gone.
Maybe not quite as easy as Jason Allen's pick a seris earlier (he had to turn, but it was thrown right to him), but easy nonetheless.
It was 13-0 and that was pretty much the ballgame.