Well for me if you are the leader of the team, you demand the highest salary in the league, you handle the ball on every snap, you are a 9 year vet, you most be held by a higher standard than everybody else, specially if you talk a big game and frequently come up short at crunch time.
Is not personal for me with Dak, I think he is a great guy and has lived a lot of adversity in his life. I respect that he works hard, but TBH at this stage I came to the conclusion he just don't have it in him. The Dallas Cowboys QB position is the hardest job in sports, it brings the fame and wealth but also brings along the biggest criticism.