That's a very rare thing, but I think it's true. They're bad at USC right now. Extremely talented, but not good.
And he has to pick one of the P5 games as a win. BYU always tends to win one of those games. Nobody pre-season would have picked them to beat Texas, Oklahoma, Wisconsin, etc. They'll win one of those 3 (they won't beat Utah, Utah is exempt from the "BYU surprises a P5 team" rule). USC is as likely as any other. I personally think UW is their best chance, that team lost a LOT from last year, but Peterson is a much better coach than Kalani or Helton, which covers a lot of deficiencies in college football.