not if you have a great defense. Penn State has one of the 10 best defenses in the country. But they're 55th in offense and 72nd in turnover margin, and all of their good offensive performances came against bad teams. typically a top 10 defense in the country is enough to get you ranked no matter how bad your offense is. that's a little difficult when you play four teams that are better than you overall and you don't pull any of them out. typically a team with a top ten D gets into the top 25. Auburn's offense has proven to be only marginally better, their defense only marginally better. yet they find themselves sitting at what, #10? after getting smoked by a generall uninspiring Georgia team two weeks ago? c'mon man. the difference between those two teams are slight. certainly the difference is not one at #10 and one not rated whatsoever. TCU is 4th in total defense and they just got ranked this week. Miami is 5th in total defense and they aren't ranked. Wyoming is 8th in total defense and they aren't ranked. Georgia is 9th in total defense and they aren't ranked. Western Michigan is 11th. Clemson is 12th. Florida St is 15th. All of those teams are ahead of Penn State (16th) in total defense. Penn State played a harder schedule and better offenses than nearly all of those teams. Florida State, Miami and Georgia have defenses in the same league as Penn State, but the rest don't. My point was that a good defense isn't everything and doesn't make you a good team and doesn't mean you should automatically be ranked.