How much of the OSU season hinges on Justin Fields? I figure the worst they can do is 10-2 (barring some weird breakdown or injuries galore).
Fields could well have a terrible game and lose to say Nebraska or Penn State. Maybe he has two and they lose TG to go 9-3 which would be quite disappointing. But perhaps he does "pretty well overall, has no real meltdowns, they should get to 10-2, or better. And there is a decent chance he is quite good, or at least able to "manage the game and limit mistakes". Getting into the right play call is obvious a good thing.