I hope he can be in devil squad, but i think he is a man witg one big talent, i dont really think that he can be a goalie coach - as he say he dont want that. He had big feelings in game and stay in right place in right time, good position yes, but technicaly he didn' t look so good as goalie may. As we can can see for victories - technic isnt so important, to way better feelings, stay strong and psyhology of winner(i think with that moment marty has problems now), but for coaching - different other stuff. Its just an imho, i'm not professional coah or player.
And he has no character power, like roy who looks like gibson in braveheart