In the recent showdowns with elite opposition the Oregon's defensive front held up quite well against excellent offensive lines from LSU and Auburn. It was the Ducks offensive line that had issues in those meetings.
None of these guys on the current D'line were on those teams. And Stanford completely dismantled the D'line the past two years. It has been known to be one of Oregon's biggest problems is their small D'line going up against big physical teams. I didn't even know it was that big of a secret.