The Vikings were the most under-performing team in 2010 and I am not sure it's even debatable. Brett Favre flopped, the offensive line still stunk and the run defense took a heavy plunge that took them from one of the best in NFL history to mediocre at best.
It was a crazy season filled with unexpected turns and twists. Head coach Brad "Clueless" was sent packing halfway through the season and Leslie Frazier took over, eventually becoming the new head honcho.
The Vikings are going to be losing a lot of players to free agency, most notably Sidney Rice, if the current franchise tenders do not count in the new CBA.
The team has holes at quarterback, wide receiver, offensive line, defensive line, linebacker and safety. I am not going to say cornerback only because Winfield is still an amazing talent and Cedric Griffin comes back in 2011. We didn't have a chance to see what Chris Cook could do while healthy, but it's far too early to give up on him. It is safe to say the Vikings have a lot of work to do.
Are they completely out of any playoff picture for the next few years while they "rebuild?" I don't think so. A decent quarterback puts them back in the playoffs.