The "IoS" confirms what the intuitive reader already suspects -- special teams matter. Breaking the 30 teams into three ten-team segments, eight of the top ten in the IoS are in the playoff seeding, five of the next ten. Down there in the bottom third, only three teams are in the playoff mix as of this morning.
Just some doodling to occupy you while you're eating your Cap'n Crunch.
Thanks to James Mirtle, whose entry on special teams got us to doodling