Same 5-7 records.
2012 offense ppg: 36.2
2013 offense ppg: 23.8
2012 defense points allowed: 35.7
2013 defense points allowed: 29
2012 Difference points scored vs points allowed: +0.5
2013 Difference points scored vs points allowed: -5.2
If you look at differentials between first downs gained vs allowed, penalties, and turnovers - Dooley's 2012 team comes out ahead in each of those categories.
Here are the sources for detailed comparison (you are welcome):
2012 Tennessee Volunteers Stats | College Football at Sports-Reference.com
2013 Tennessee Volunteers Stats | College Football at Sports-Reference.com
Numbers don't lie - we clearly
regressed as is obvious form most of the stats.