I'd like to see any of them play our SEC schedule!
ND, if I have to answer the question.
Rising to the challenge every Saturday is much more difficult than an occasionally big non-conference game or bowl appearance. The mental focus is hard to maintain and the physical exertion coupled with the injuries (both season ending and the persistant, nagging type) tests a team's metal. Watch how these schools have a drop-off in performance in the week following a so-called "big game".
You mean, like Oklahoma State? (Played at Lubbock then Ames, Iowa last year.)