If there was ever a time to consider blowing it up, this is it. Cap situation isn't great, and it's all tied to the QB. Head coach is in the final year of his contract. The draft pick kitty is short for this draft.
To me, I would either trade or cut the QB (paying Prescott an AAV of 50M is not conducive to winning), trade off guys who are not part of the long term success of the team, and gear up for the future. The Cowboys are going to double and triple down on this roster, which is a mistake. Nothing will improve, and there is no light at the end of the tunnel.