You know that. After that for Week 4 and beyond, they look at the combination of previous results and who is scheduled to play that day. If an unranked team is 2-0 and scheduled to play a traditional power who is 0-2 {cough} Clemson {cough} in Week 4, there's a good chance the game is going to get a decent slot simply because a traditional power is playing regardless of their preseason or in-season rank.