Dan Marino was problem 99 on the Dolphins teams from 1986-1995. When he goes out and throws for almost 500 yards and 6 TDs and the team loses, that’s not on him. When the Dolphins play at Buffalo in January and score 34, only to lose by 10, that’s not because Marino played awful. When not a single RB does any better somewhere else than they did on the Dolphins, that’s not because Marino ruined them, it was because they weren’t any good to begin with.
Dan Marino didn’t put together the late 80s/90s teams, Shula did. And when you have prime Dan Marino and the best you can do is get to 8-8, or back into a wildcard, you’ve done a poor job.