Let's start with the real problem, the same one that plagues the owners...no fear of failure.
He just goes on camera vowing not to do that again. Romo used to like "we've got to get better at that".
It begins with the QB knowing exactly what is expected of him. And evidently advancing in the playoffs is not it with this team.
There are teams that will just wait and see, and the Cowboys have ego wrapped up in it, so they will wait too long. They should have been using 2nd day picks on QB's to provide pressure on the QB1. Hell, every player in the NFL knows their backup and their capabilities.