I was gonna chalk it up to strength of schedule (by that I mean give the team that is probably gonna get walloped a ranking for a week or 2), but Boston College plays Mizzou (currently ranked 9th) in 2 weeks. Georgia Tech is playing Louisville (currently ranked 22nd) in 2 weeks. I guess it's other factors, who knows how the voters in the AP Poll decide...
Regardless, if Boston College beats Mizzou, and Georgia Tech beats Louisville they both can be ranked by the end of week 2.