Take a look at this:
Here's a simple sim as one way to look at 2015 strength-of-schedule. The impact on expected CFB outcomes is dramatic. pic.twitter.com/eNPEzQsRRM — Massey-Peabody (@MasseyPeabody) August 26, 2015
In one picture you can see what computers think of the SEC's strength of schedule.
You have to go to 15th (USC) to find a non-SEC team that is expected to win more games against an 'average' schedule than their actual schedule. The upside? Georgia has the smallest spread of the ten SEC teams in the MP index top 25.