I'm worried about Michigan State next week. I don't think they're great but the Big Ten seems to always schedule this game after Penn State has a huge emotional game. As a result Penn State has played very flat against MSU in the last few years.
You saw Penn State's star potential but also saw their inexperience against Michigan. I don't think they will beat Ohio State this year. But if they can finish 11-1, that's one hell of a season.
The have the potential to beat MSU but like you said I wont be surprised if they lose. And #6 ranking this week is the high water mark for them IMO. No way are they better than the 5 teams in front of them. Still like you said they are light years ahead of where we thought they would be this year. Future is brite indeed.