You either see it or you don't, and if you have to keep making excuses for lack of than you obviously will never see it.
Putting a skilled athlete in the hands of a better coach is always a positive, but if you know anything about this game at this level, is that changing, evolving a player like Dak at the hardest position in the game is virtually an impossibility,, we came close with the Romo tenure, investment, failure.
It comes down to if as a fan you accept entertainment value, or you expect victory.
If all you want is entertainment value/level on sundays, than by all means buy in to the new tenure/investment in Dak.
Some fans actually expect more, and are willing to take the risks involved to obtain that level of play.