Regardless of what you think of Dak, he's not going anywhere. He's here for a few more years. You can dabble in fixing the talent around him but IMO, that just won't be enough. The only other option to try to squeeze more out of him is give him a fresh voice, a new offensive system. He and Moore have stagnated, specifically when it comes to situations like last night.
Before the Moore fans get all goosy and poop all over this thread, I am not saying Moore sucks. But the reality is the OC is a lot easier to replace than a QB with massive cap hits. Jerry likes to wax on about how he has had to make a lot of tough decisions his entire career in business and in most cases, they have panned out for him.
Here's another opportunity. If you really want to try to get more out of Dak, I think the easiest way is get another OC in his ear, another system that can scheme guys open, etc. Make it easier for Dak. I tend to think Moore and company expect Dak to turn whatever they are spinning into pure gold. It might be time to try someone who can turn what Dak is spinning into gold.