Laying out the top 10 ways for the Vikings to improve themselves this off-season, so maybe next year, instead of making it to the brink of the Super Bowl, they can actually, you know, make the Super Bowl… So what exactly do I mean by “upgrade the offensive line?”  Getting rid of that giant nitwit Bryant McKinnie would be a start, but unfortunately, there are problems with that.  For one thing, there’s McKinnie’s contract, which would mean a large cap hit if we tr…