This is an interesting take on the deflategate probe. The author compares the Patriots tendency to fumble before and after 2007 (when the rules regarding treatment of footballs was changed). Prior to 2007, the Patriots, under Belichick, fumbled the football at a rate similar to other teams playing in outdoor stadiums. After 2007, the Patriots fumbled considerably less than any other team. The rate at which they fumbled, is in fact, a noticeable outlier.
The implications of this are that the Patriots have been regularly deflating footballs (making it easier to hold onto the football) since 2007.
As a Forty-Niner fan, it pains me to say this, but, #goseahawks