2009: #1 scoring D, that's kind of important , #8 rushing D, #18 passing D, #7 total D, all better than this year.
https://www.sports-reference.com/cfb/years/2009-team-defense.html
http://www.cfbstats.com/2009/leader/national/team/defense/split01/category10/sort01.html
2010: #10 scoring D, #5 passing D, #11 total D.
https://www.sports-reference.com/cfb/years/2010-team-defense.html
http://www.cfbstats.com/2010/leader/national/team/defense/split01/category10/sort01.html