I like him more for exactly that. There's something slightly so off putting for me with people wearing suit to a football game. Suits with a fucking tie to a game? I can't have that. Take a shower after the game, put a tux on if you so like it, but while you're on a football pitch don't wear a suit unless your name is Sir Bobby or Sir Alex or Sir something etc.
All managers look better with a suit. Except for Pardew, who looks a cunt either way.