Here’s how so:How so?
Clemson is ranked 15 preseason. Duke is unranked.
Both teams are now 4-1. Clemson is ranked 10. Duke is unranked.
Of course you could argue that Duke lost to Georgia Tech and Clemson lost to Georgia. Even so, entering yesterday, Duke was 4-0 and unranked while Clemson was 3-1 and ranked 11.
Looking at who both teams beat does not explain such a disparity.
The only explanation is that Clemson was ranked, and is “thought” to be better (which they probably are, but still).