The o-line has been perennially average, so he's certainly elevated THEM, since this team came into tonight's game with the #1 offense (amazingly enough - hec, I find that hard to believe too LOL).
And Dak likely has to elevate or overcome a lackluster OC with simplistic game plans.
And let's not forget about all the drops.
Dak isn't playing well, but the o-line, the OC, the non-run-blocking TE - none of them have showed consistency either. So it all looks bad. And I think it would look bad with a lot of other QBs as well.