Inside the Numbers: Advanced SEC stats at the halfway point

Efficiency

• Defined as getting 50 percent of necessary yards to gain on first down, 70 percent on second down and 100 percent on third and fourth down ('moving the sticks').

• Defensively, this would be the percentage of plays you allow that to happen — so a lower number is better on defense.

Offensive efficiency:
Auburn, 48.8
Ole Miss, 48.6
Arkansas, 48.4
LSU, 47.7
Texas A&M, 46.3
Florida, 45.2
Mississippi State, 44.8
Alabama, 44.5
Tennessee, 44.1
Georgia, 43.6
South Carolina, 41.4
Vanderbilt, 38.