Ok, I'm back with another stat to chew on. Anyone that was here last year 
will remember that after the middle of the NFL season, I started posting what 
each team's opponent's winning percentage was. I will start doing that after 
the 4th week this season and at the same time, I will be posting something 
that I call offensive/defensive efficiency. This is the relationship of 
points to yards gained adjusted to look like points scored. You might want to 
kick back and relax because this one's a doozy.:-)
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