I like Dak, but you’re right. He’s a good player that got paid great player money. His career record against teams with a winning record is 6-20. Even last season while he was putting up huge passing numbers, his record was 1-3. Granted, he had an historically bad defense supporting him. But in the first half of games he started last year he had 4 touchdowns and 4 turnovers in the first half of games. They were usually down by multiple scores, which is why had had such high passing numbers.
Teams with good but not great QBs are in a tough spot these days. With not enough great QBs to go around if you dump your QB to draft somebody else you probably won’t upgrade. Meanwhile there’s tons of teams with bad QBs that would LOVE your good QB. So you’ve got to pay him like a great QB, or lose him and wind up with a bad QB. And it’s not like the rest of Dallas is any good.