Part of it, is our OL is to small v more talented, larger DLs. They played better tonight v Bama than LSU. However Bama and LSU's DL, per man, are 2-3" taller and 50lb heavier than our OL.
Then the same is true for our DL. Bama and LSUs OL was much heavier and half a helmet to damn near a full helmet taller than our DL.