What the 2011 team accomplished will never be matched. The 2011 LSU Tigers were the greatest team in college football history and it is very difficult to debate other wise.
What did LSU do:
Beat the BCS National Champion on the road
Beat the BCS Rose Bowl Champion at a neutral site
Beat the BCS Orange Bowl Champion on the road
Beat the Cotton Bowl Champion at home
Won the SEC Title
Won 13 games
This resume will never again be matched.