There is no team in the NFL that has done more to improve itself than the Minnesota Vikings.
First, look at recent injuries. 2005 first round pick Erasmus James was out for 14 games last season; 2006 first round pick Chad Greenway was out for 16 games last season. With James and Greenway added to the 2007 team, along with Adrian Peterson the Vikes are essentially adding THREE first round draft picks! Consider, too, that 2005 draft pick Troy Williamson couldn't see straight in 2006; since he will be able to see straight in 2007, it is like the team is gaining FOUR first round draft picks!
And let's look at that draft. First, we added the best player in the draft, Adrian Peterson, to pair with Chester Taylor to make one of the best backfields in the league. And as WR was the team's biggest need, the Vikes drafted receivers Sidney Rice, Aundrae Allison, and Chandler Williams. DE Brian Robison and CB Marcus McCauley should also be immediate impact players for the Vikes.
How about free agency? The Vikings made a few small moves to greatly upgrade. For example, last year TE Jermaine Wiggins averaged 8.4 yards per reception. They replaced him with Visanthe Shiancoe, who two years ago averaged 11.4 yards per reception. The Vikes have basically gained 3 yards per catch by the tight end--that is going to help the offense a ton. We also added other low-key free agents to add depth and strength to the defense and wide receivers.
The second-year version of Tarvaris Jackson is going to be twice as good as the 2006 version of Brad Johnson. He'll also be ten times better than the first-year version of Tarvaris Jackson.
But the most important addition is Adrian Peterson. He gives the offense an all-pro quality RB. Expect Peterson to produce like Eric Dickerson in his first few years.
Don't be pessimistic, Viking fans--the 2007 squad is going to be much improved. The NFC North is going to be easy pickings next year.