The thing the average observer never seemed to understand, was exactly how much harder it was to block for Barry Sanders than for just about anybody else. The Lions' linemen themselves used to point this out all the time. In 2004 around the time of the HOF inductions, Sports Center had a few of the Lions offensive linemen that blocked for Barry on the show, and they all said to a man that they hated blocking for Barry because he never went where the play was supposed to go. It's too bad there's no clip of it to pull up. One other thing I wish I could find was that NFL Films clip that was on YouTube years ago where the analyst broke down film of Barry actually passing on a hole to cut outside and look for the big play.
Bottom line, Barry didn't take the yards that were there and make the most out of the situation, he was in constant pursuit of the big play, which he was better than any running back has ever been, but he often left his team in a hole on the next down. That's not the most conducive way to win football games. That fact alone is why I've never bought into the argument that "if Barry had, had Emmitt's line he would have rushed for 2,000 yards every season", because no matter how good the line is if the RB doesn't go where it's designed to go, the play will look like crap and that makes the offensive line look bad. Another thing: If you are blocking in one direction, and the runner changes directions and goes the other way, how is it your fault when he gets stuffed?