It's not really about Dak, though. Just like it wasn't about Romo. Garrett's conservatism forced the offense to have to be better one-on-one than every defense it faced because he rarely schemed mismatches. IMO, that particularly hurt the offense against top defenses because if you play them straight up, you lose your advantage. We have hardly ever had the type of defense we need for the creative advantage to not be necessary.
Funny thing is, I believe I saw more creativity by Garrett against us as the Giants' offensive coordinator than I ever saw from him here. As a head coach, he just never seemed to believe in its necessity.
With McCarthy, I hoped that we would get a blend of scheming advantages as well as having top talent. Of course, the talent became a problem with all the injuries we had last year. I did think after Dak when down that Moore made some creative decisions as a play-caller, but that was out of necessity. The question is whether we will display that creativity with the offense back intact.
If we do, I think we have a chance at having the best offense. If we play conservatively, then we're going to need a much better defensive effort to have a shot at reaching the Super Bowl. Like under Garrett, we can reach the playoffs facing a weak schedule without a creative offense and with a shoddy defense, but we wouldn't be able to outgun the playoff teams.