This is simply not true. Yes TCU returns a lot on offense, but their defense right now is nowhere near what it was last year. They lost some of their best players to graduation. They just lost a starting DB for the rest of the year, and they are severely hurting at linebacker. You can't base everything off of one bowl game.
I'm not saying Ole Miss should be #3. I don't think ANYONE should be ranked right now. Rankings in my opinion shouldn't come out until November. But TCU is nowhere near the same team they were last year. And their offense struggled to score against Minnesota. This might be irrelevant by next week anyway because I think Tech has a legit shot to beat TCU. Texas Tech is quietly 3-0 and their offense can score on anyone.
Arkansas held Texas to 59 yards last year. I think Texas would beat Arkansas right now even if Swoopes was the QB. EVERY team in college football changes drastically from year to year, even if they return a lot of starters. This is why I don't think ANYTHING that happened last year should be considered for ANYTHING that could happen this year. I don't believe Ohio State is entitled to their #1 ranking. They were the best team LAST YEAR, but this Ohio State team hasn't even won a conference game yet, much less a national title.