It's funny you mentioned "Joe Cool".

Many on the board think of Goff as a QB capable of "not losing" a Super Bowl if his surroundings are perfect. Below are some mediocre Super Bowl QB's. I included Smith because several Herd members mentioned his name even though he never played in a Super Bowl.

Career QB Ratings
Foles - 88.4
Flacco - 84
Dilfer - 67
Smith - 83.7
Goff - 89.4 (that includes his rookie year under Fisher - 63.6)

As Goff matures (barring injury) he should get better. I see those QB as a floor not a ceiling.

Mystery QB HOF - 1st five years. Goff's potential ceiling (my biased opinion)
81.1
87.8
88.4
88
94.6

He had a career QB rating of 93. Guess who this QB is? Hint his coach devised the "West Coast" offense.