With Brett Favre out, the Vikings get to deal with one less distraction. Tarvaris Jackson has waited two seasons for a chance to start.
Let's take a closer look at Tarvaris. In 2008, Jackson led a severely inferior Vikings team to the playoffs. He did not, at that time, have weapons like Percy Harvin or Randy Moss. On defense the Vikings did not have Jared Allen.
In both 2009 and 2010, Tarvaris took all of the starting repetitions at quarterback in training camp. He has worked with the first team a great deal and likely has some chemistry with the receivers (excluding Moss).
He's also gotten an opportunity to learn from one of the greatest quarterbacks of all time. Two years learning and watching Favre can't have hurt his development. He also has a cannon for an arm, so getting the ball deep to Moss shouldn't be an issue.
Sure, lack of game experience and a complicated Patriot defensive scheme will hurt him, but the loss of Favre isn't a total disaster for the Vikings.
They will also lean on their best player, Adrian Peterson, more heavily. Peterson gets better with more touches. A steady dose of Peterson will go a long way to a Vikings win.
The Moss revenge factor is also key. Moss has routinely torched the Cowboys, who spurned him in the draft. Moss has publicly stated that the Patriots didn't want him; expect him to be hungry to torch the franchise that pitched him overboard midseason.
Look for Tarvaris to be steadier than expected, Moss to catch a couple of deep balls and Peterson to run wild this Sunday.