It's huge, but I don't thing Iowa wins this thing.
Chryst is smart enough to learn from Ohio State's mistake of not blitzing (which is the only reason we won), our DE hasn't come close to being tested this year, and Wisconsin is deep enough that' they'll hang in the trenches.
Iowa so far this year has played hugely subpar teams that got tired in the second halves. That's not going to happen Saturday. Stanley gets rattled with the slightest bit of pressure and Wisconsin is going to bring it in spades. With their "hybrid" 3-4 you're going to see a ton of LB and safety blitzes which Stanley proved last year he couldn't deal with and there's no Daniels or Welsh in 2018. On 3rd downs I guarantee you that 3-4 is going to turn into a dime blitz package, and with the struggles the OL has had so far what indication is there that they can handle Wisconsin bringing the house? Fant/Hockenson/Beyer blocking? Take them away and the secondary is left with easy man coverage because the TE threat isn't there.
I know a lot of folks stress the OSU game last year as how the Hawks can throttle ranked teams, but that's total homerism, plain and simple. That game was lost by Ohio State's coaching mistakes and if you don't know enough about football to see it then I don't know what to say; it was staring you in the face for 4 quarters. Ohio State hung back thinking they could leave Stanley alone and play zone and it bit them in the ass.
We can go on and on about what BYU did, but good coaching staffs do two things that average coaching staffs can't master... 1) they learn and exploit their opponents' weaknesses, and 2) they learn from and don't repeat their own mistakes. You're not going to see the team that BYU beat last week.
My prediction is 24-6 Wisconsin but I would love to eat some sweet crow.
Commence with the hate.