I added the FEI game ratings to a new tab in my
spreadsheet. I also added a summary page (Game Rating Summary) where I assign each win and loss to either offense or defense. For the Syracuse game in particular, our offense played their 7th best game and our defense played their 10th best, so I ultimately assign that loss to the defense even though the offense wasn't great . Only in the FSU and Vanderbilt games did we have a worse defensive game rating.
Interestingly, when I use the FEI ratings to assign the win/loss to one side of the ball, I get:
Responsible for wins: Offense - 4 (FSU, GSt, Duke, UNC) ; Defense - 2 (Miami, NCSU)
Responsible for loss: Offense - 3 (L'ville, ND, VT) ; Defense - 3 (Syracuse, Georgia, Vandy)