I just think Arch does the things that Sarks offense really loves at a level higher than Q and he’s more mobile (I think his overall ceiling is higher too), even though a mobile QB is not really a Sark thing, it’s damn nice to have to get the yards however you can to bail out bad plays. I would bet Arch’s ratings next year are higher than Qs this year even with a rebuilt OL. That said, Sark is in a tough spot for various reasons and he does have an affinity for Quinn that I understand. I just think Arch was made for Sarks offense.