The Minnesota Vikings are falling behind in a sense - in that they don't have any of their rookies under contract for the 2012 season, while most teams have already got started. That isn't necessarily a bad thing by any means, as things are made much simpler by the rookie wage scale in place. Rookies are sgiven a certain amount based on where they were drafted, give or take a few bucks here and there.
It still is a little odd as to why the Vikings haven't even gotten started, but the Pioneer Press sheds some light on things:
But there could be several reasons why the Vikings are waiting. Sometimes, it's as simple as cash flow/accounting. Teams want to make sure their books are in order. Maybe they haven't gotten around to negotiating with all the player agents. Some agents like to do business in person if they can. Such plans take time. Or maybe the team simply isn't ready.
As the piece goes on to note, the Vikings are simply being patient, and when they are ready to get players signed, it should come at a rapid clip. Even if rookies hold out to some extent, there's really no danger of entering training camp and the preseason with uncooperative rookies with the new wage scale.
Of course, it's a new scale, and there's a first time for everything!