As I said, if Mullins clicked, maybe the whole team clicked. It could be argued that he played well in the '74 and '76 finals.
In '85 Dublin certainly came into the game when Mullins went off and Kearns went onto Jacko. In '84, the whole team may have stayed at home, not just Mullins. Hargan was brilliant in '83 for Dublin. But a full-back can be badly exposed by a full-forward if the opposition can lay the ball on a plate, time and time again for their full-forward. This happened in the first half of the drawn match against Cork (and John Allen) in '83 and in most of the '84 final against Kerry (Liston). Hargan looked brutal but he was left helpless by those further out.
Mullins was excellent in the first 20 minutes of the '78 final. Mick O’Dwyer was warming up a sub to take Jacko off, given Dublin’s supremacy. And then the sucker punches came, neither of which were the fault of Mullins.