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APIDTA
I don't even understand the point of kickoffs anymore, might as well just let nikkas start at the 20 
because taking the ball out 5-8 yards back

because taking the ball out 5-8 yards back

Average starting field position after kickoffs.
2011 - 22.1
2010 - 26.8
Average total number of kickoffs per game
2011 - 10.4
So if every drive started with a kickoff (which would never be the case), and every drive went for a TD, you are looking at an average of 47 extra yards a game (thats the total for both teams). That has very little to do with the increase in passing yards.
The increase is due to the rules favoring the offense and especially passing right now.