You gave a good example of the team game aspect, kind of backed it up and then sort of ignored it. We absolutely do not know what is going to happen in the playoffs. Last year, San Fran essentially ran over our defense, we had multiple mistakes by multiple players on offense, and we lost by six. Was Dak good enough? No. But he wasn't the only reason we lost.
Let's say in the playoffs, we're down by two with a minute and a half remaining. Dak completes three to four passes and we're in field goal range, but Maher pulls the kick. Do we say that's a complete indictment of Dak? I'm not sure we can blame it on coaching or their relationship, either, without knowing what happens.
A good example from last year's game for me was a play-call from Moore that I thought was very good. Our offense was having trouble moving the ball against a pretty stout defense. Dak threw over the middle to Wilson who immediately threw a lateral to the sideline to Pollard, only Wilson threw a bad lateral on a play where Pollard had the sideline and might have gone for a TD. Good coaching, good execution by the QB, bad pass by Wilson. Maybe we still don't win if we hit on that play, but maybe it's the difference between winning and losing.