I've written about strength of schedule on many occasions over the years. Way back in 2010, I introduced the concept of measuring schedule strength from the top down, calculating the likelihood of an elite team running the table as a more effective way to measure the merits of national championship contenders. I kicked off my 2014 season preview in advance of the first iteration of the new College Football Playoff with the introduction of "degree of difficulty," designed to measure record (rather than possession efficiency) against schedule. Last season I adjusted my approach again, this time articulating the distinctions between the challenge of facing a given schedule as an elite team, as a merely good team, and as an average team.