is the same reason that Lavell made a no-name football team in the 70's into something dangerous and Jim Harbaugh turned a laughing stock Stanford team in the '10's into a perennial top 20 team. Some teams are simply good/bad matchups against other teams. The transitive property does not exist in football. Lavell and Harabaugh were primarily successful because they molded their offenses to be good matchups against most of the other defenses of the time.

Oregon's offense was coincidentally built to beat our defense (in contrast, it was a horrible matchup against Georgia's D-Line which prioritizes speedy D-Linemen). Our defense was built to stop Baylor's power zone blocking scheme.

If it was not so, football would have less parity than it has now.