This is an interesting take on the LSU defense, and how to some extent it was adjusted over the past off-season to address the challenges of facing the Ducks.
Surprisingly, LSU looked to increase the speed up-front as a counter to the speed and pace of the Oregon offense. After watching the Auburn game last year, and the LSU game this year, my impression was that it was the size and gap-stuffing ability of those defenses that was the difference.
This article was a bit of an eye-opener, and made me re-think my assumptions. I'm still not sure if I buy in to this thinking completely, but it does make sense after watching the Cal defense get out-run on several plays last night.