The thing is Goff has played his entire career either for Sean McVay, one of the elite offensive coaches of this era, or now one of the hot offensive coaches in Ben Johnson.
So we can argue maybe he helped make them both look good, but McVay clearly decided he can't win a SB with Goff and traded him and won a SB, so I'm inclined to think McVay was the key to that partnership. I think Goff is good and hes' gotten better since leaving the Rams, but my suspicion is Johnson makes him look better than he is.
Clearly Kliff wasn't as bad as many of us thought since the Commanders look really good on offense with a rookie QB but I don't think they're going to be having a half dozen teams trying to hire Kliff as HC next year the way Detroit did with Johnson either.
So I think Kyler has had offensive coaches who were not as good as Goff has had. And Goff has done more with the opportunities he's had.