Don't be silly.
And I said 5-12; maybe 6-11 if they get lucky, or even 7-10.
The point is that the Cowboys probably won't win half of their games with Dak as the starter. That much I am 95% sure of.
That ought to be good enough for you. If I'm wrong, so be it, but I seldom am.
Last year would've been worse except for questionable games vs the Lions, Texans, and Colts. I don't think the Cowboys won those games on the field, and got help elsewhere.
And there's always teams that appear tough now that become pushovers as their hopes for the season fade.