A couple Viking links
Judd Zulgad writes that "Peterson has worked on his pass catching and blocking this offseason and the feeling is this should make him more prepared to play in a variety of situations in his second season" (Access Vikings).
Pro-football-reference brings some serious analysis to John David Booty.
Bucky Brooks wonders why nobody is signing Daunte Culpepper or Byron Leftwich (Sports Illustrated).
And an argument
O.K., Cold, Hard Football Facts: I get why the Packers would be ranked #1 all-time, and the Giants and Bears would be in the top four. But it also highlights why such a ranking is difficult--these teams are getting the benefit of longevity. They won a lot of titles back when it was a small league (and thus statistically easier to win championships--consider differences of odds like 1/10 v. 1/30, or even 1/14 v. 1/26), titles won before about two thirds of today's teams even existed (and thus they don't really have a chance to compete).
Though I respect old school history, I'd still make an argument for the Cowboys as the #1 franchise of all-time. Here it goes. The Packers have 12 championships in 87 years. Three of those championships came before there were even championship games. Nine of those championships came when the NFL had 9-14 teams. They won in a smaller league, when an individual team had a much better chance to win a title.
The Cowboys have won 5 championships in 48 years of existence. They won their championships in a league with 26-30 teams, meaning it was much more difficult to win championships during this era. They've been to eight Super Bowls, and among all franchises, only the Bears (.580) and Dolphins (.580) have a better winning percentage than the Cowboys (.578), and the Cowboys have a better percentage than the Packers (.558).
Certainly the Packers have an elite all-time franchise, and one can choose to reward the Packers for what they've done in their 87 years. I believe, however, that what the Cowboys have done in their 48 seasons is more impressive than what the Packers have done in their 87 seasons.