If the Vikings have ever considered switching to a 3-4, there will be few opportunities like this one. Kevin Williams, if re-signed, can play DE in a 3-4. Everson Griffen will be a priority to re-sign in any case, and is arguably better suited as a pass-rushing 3-4 OLB than a 4-3 DE. There's a good chance Jared Allen won't be re-signed, IMO. Brian Robison would be on the fence. He'll demand a pretty hefty salary and may not have a natural fit in a 3-4.
Going into the draft, I wonder if the Vikings are thinking ahead to the possibility, because it would almost certainly affect their choices at two key spots where they have needs: DT and LB. Guys like Ogletree or Okafor might be more important to nail down than an MLB like Te'o. A big nose tackle would probably be more important than finding a 3-technique replacement for Kevin Williams.
Interesting times.
