The one thing the Cowboys have needed is for Dak to be a true leader at the quarterback position. However, he came in under Garrett, and learned how to let the media blame others for his failures instead of leading.
With the West Coast offense, McCarthy's staple, it may well be that Dak has hit a reset, and the rigors of learning an entirely new scheme under a Coach that truly understands leadership has given us a brand new Dak.
We won't know until he actually faces a tough test, but for now it would be unfair not to give him credit for what looks like an improvement. From calling plays in the preseason, to Mike McCarthy demanding accountability, it is entirely possible that Dak is not the same quarterback from years past.
Let's hope for the best.