I think it would have been excellent with Green but Warner took it to the next level.
I think Everett could have done what Green did with KC. Ferragamo... hmmm... I was 11 in 1979 and only saw him play in a small handful of games.
Goff... I don't know. I just don't have a high opinion of him based on the last couple of years. He gets credit for the SB season and rightfully so but I think several QB's would have been better. I think Bradford would have been great with McVay. Bad luck that he got stuck with a crappy team with crappy coaching and crappy players. Unlike Goff who got basically everything a QB could want and when there was a little adversity he couldn't overcome it. Just how I see it.