This is no surprise: The Vikings have benched Tarvaris Jackson in favor of Gus Frerotte (see article from Sports Illustrated).
There is simply too much pressure to win NOW in the NFL, so Brad Childress had little choice. This is particualrly true when you consider the amount of money that Ziggie Wolf spent ($60 million) to patch holes in the Vikings' roster during the off-season.
With this change, I won't be surprised if the Vikings beat Carolina this Sunday. The game is in Minnesota and the Vikings could have renewed energy if Frerotte can perform competently.
The Vikes, by the way, are a 3.5-point favorite. Philly is a 3.5-point favorite over the Steelers, and the Bills are a 9.5-point favorite over the Raiders.