It's not about the Packers keying on Peterson more than usual. Teams like the Packers key on Peterson every week; Green Bay was just more effective than most. Webb's presence in the Vikings' starting lineup didn't help. He completed just 11 of 30 passes, with a meaningless touchdown pass in garbage time.
Peterson carried a mediocre team as far as it could possibly go. But this is a quarterbacks' league, and the reality is that running backs only can do so much. Of the seven running backs to reach 2,000 yards in a season, only one of them (Terrell Davis) has won a playoff game in that season.
The loss won't erase our memories from Peterson's campaign. And it shouldn't diminish an encouraging year for young players in Minnesota. Rookie left tackle Matt Kalil, safety Harrison Smith, cornerback Josh Robinson, wide receiver Jairus Wright and kicker Blair Walsh all look like great core players. String a couple of drafts like that together and improve the quarterback play, and this team might have something.