I don't think the weight of an OL is necessarily the test of what makes it difficult to face. BYU had a huge offensive line.
BYU's line is designed for passing which is less physically demanding on defensive lineman. Running teams lineman attack the defenders which forces them to be more physical. Pass blocking largely neutralizes the size advantage. It allows speedy defenses to use their speed to attack the quarterback.
I think Aurburn's line will give us trouble on account of their size and style of play. We'll be able to see how our line holds up against teams that run. I personally think the depth might be trouble.
I am curious to see if Auburn's up-the-gut style will marginalize Wilkinson (who had a great game at BYU and will at the very least be a good pass rushing end). Parker and Wrotto are going to be key in my mind. The middle will be where it will be won or lost. The linebackers should have a big game as well.
