Do you even Google?
CLEMZIN National Rankings
Total D - Rushing D - Scoring D
#18 ----- #36 ----- #13 (2008, pre BV)
#20 ----- #67 ----- #25 (2009, pre BV)
#19 ----- #28 ----- #13 (2010, pre BV)
#71 ----- #83 ----- #81 (2011, pre BV)
#63 ----- #58 ----- #46 (2012)
#46 ----- #56 ----- #26 (2013)
In each category, the top 3 seasons out of the last 6 are highlighted. Venables has Clemson playing "not awful" defense the last 2 years is about what you could say on his behalf. Well, and his numbers are in fact improvements over the 2011 collapse.