Those days are long gone man. The '17 and '18 Goff is long gone. We had the best RB in the world those two years. Goff hasn't played a dominant full game since NO in the NFC championship game. That was a long time ago and since he has steadily gotten worse.
We all remember that KC or MIN greatness in 2018 and think that's what he is. But its not, in reality looking at his career those great games were anomalies and the average/bad play is much, much more common.
You shouldn't have to motivate a $30M QB on a great team, with a top 3 defense, who already got embarrassed in the super bowl.