Rock, I apply these standards to any quarterback who endeavors to help his team win a league championship.
The most important thing in what I define as good clean football is for a quarterback NOT to turn the ball over on his team's side of the 50 yard line. This simply cannot be done. A turnover here or there can be expected, but anything beyond that is to be avoided.
The second most important thing is to not try to make plays when they are not there. The goal should be to move the offense and keep the unit in rhythm at all cost. Taking sacks, trying to invent plays that are not there by using gymnastics and contortions shall, by the thinking QB, be deemed unnecessary. Under those circumstances the odds of winning will be greatly improved by taking what the defense presents and not, certainly, through any other histrionics or machinations. An example of this latter point is Patrick Mahomes' turnover laden performance in last year's game. It was none other than HOF QB Warren Moon who made the observation that Mahomes could have helped his team by taking what the defense gave him. The quarterback shall simply do what is relevant.
Lastly, the quarterback shall be mentally present and engaged in all situations on and off the field. Off the field, he shall make all preparations for physical and mental preparation. On the field, he shall think about the next 5 plays in the context of the present play and how he finally intends to effect the game.
Weather, COVID-19, and social situations are circumstances that must be navigated with the utmost and most meticulous focus and preparation.
That's all.