A healthy OSU team would have had to be perfect to win. If we wouldn't have missed so many tackles, losing with Sermon out would have been harder to take. But if you can't tackle them, there's no way OSU could have pulled it off.I think this is like asking "which jelly donut was more to blame for the death of John Candy?"
Obviously Fields being banged up, and Sermon getting knocked out from the first possession made it an easier blowout for Bama, but the Buckeyes weren't winning this game, in my opinion, even if their entire team was at 100%. A healthier team would have likely made it a more competitive game, but I still think Ohio State loses by double digits regardless. I am biased though.