I looked at that yesterday...LSU averages 117 yards more than their opponent gives up/game.....
.....so, if those defenses had held LSU to their normal defensive rushing averages -- it only effects their average by about 18-20 yards/game.....moving their ranking between 8-15 spots....at the most....
Also - the two best Rushing Defenses LSU has faced:
MSU averages giving up 161 - gave up 266 to LSU
Syracuse averages giving up 157 - gave up 268 to LSU
UF averages giving up 110 - gave up 221 to LSU
WKU averages giving up 174 - gave up 211 to LSU
The other 3 teams LSU faced average giving up 200+ rushing yards/game.....
Bama gives up 73......