|2013 - GRID - week 08 - efficiency|
I've been trying out another GRID ranking for a couple of weeks and the above essentially takes Offense scoring efficiency (as a percentage) subtracted from Defense scoring efficiency. That gap between Offense and Defense appears to be a very good indicator of a teams strength.
You'll notice above that their are 13 teams above 0%, which means the majority of NFL teams (19) are below 0%. This seems to be how good/bad NFL teams are this year (well at least for this week, now I'm thinking I wish I had tracked this from week 1).
The division with the greatest parity appears to be the AFC North where an 8% gap exists between the top (CIN) and bottom (CLE) teams. The division with the greatest disparity (33%) is the AFC South and NFC South.
This GRID ranking is an accumulative ranking mean the whole season counts, not just a couple of weeks.
Eleven teams (or slightly more than 1/3 of NFL teams) are between +4% and -4%. There are ten teams above +4% and eleven teams below -4%.
I guess this is somewhat of a better GRID, though I think CAR maybe a bit high.
The strongest division appears to be in the AFC west. The weakest (IMO), the AFC North and NFC East, though an argument could be made for other divisions as well (AFC South w/JAC is a doozy).