Interesting statistics in that article. Thank you for posting that up.
I would be curious to see a similar comparison across the power conferences over 5, 10, 15, 20, 25 and 30 year periods. I would also be curious to see what the upper and lower bounds are for that composite. Curious to see if, statistically, college football has seen a trend towards more parity over a 30 year period OR if what we could call "average" just captures more of the college football landscape than it did at different periods in the past.
I realize it is easy to get caught up in analysis of statistics and focus in on them as the absolute communicator of truth but it is also interesting how they can point to trends or suggest outcomes.
In the end, I think zoogs nailed it.