Uh, we've been wasting time. We've wasted this offensive line. You know, the big bad offensive line that was supposed to be reminiscent of the 90s line.
Second, why are they franchise tagging him? Because having a starting quarterback is better than having none.
Third, see the Commanders. They continually tagged Cousins knowing they weren't going to keep him. But since they had the leverage and hadn't found his replacement, he was better than Colt McCoy so they re-tagged him every year until they let him go. Dak is better than Cooper Rush. Dak with a good team did get us to the playoffs. Tua/Burrow/Herbert with a good team could get us to a Super Bowl.
It's called dancing with the woman you're with versus the woman you're not with. You don't waste a dance waiting for a prettier woman.