This article is nonsense. Of course the OC matters!!! OCs design plays that take advantage of a team's strengths, include deception, and are harder to defend. The OC is usually the play caller and all you have to do is look at the NC and Super Bowl games to see how that can make a difference.
We didn't loose the NC game because of our D but because our O couldn't convert three 3rd downs.
BINGO!