from football outsiders: http://www.footballoutsiders.com/extra-points/2009/what-we-did-our-holidays. 

My comp keeps locking up when I try to post that as a link, so maybe someone can convert it.  Basically it's about a trip a couple of the FO guys took to NFL films.  Among other things, they reviewed the performance of the Vike's offensive line, not just against Carolina, but throughout the year. 

Their conclusion:  The offensive line kind of sucks, especially in run blocking, and particularly on the left side of the line.  That's something that a number of members here have speculated about to varying degrees, but few of us have the opportunity to do this kind of film review.

Not good news, and something we either need to get better at quickly, or figure out how to overcome.