With respect, *******s; he doesn’t look like he went anywhere near JD sports.You may purchase your leisurewear there, Arteta does not.
Wearing a suit would make him look like an old fashioned authority figure. No good manager does that anymore. It’ was okay under a pensioner, not so acceptable under a 36ish year old.
I expect he will wear a suit on occasion and pull it off with aplomb. We’ve seen what being a 1970s authoritarian did for Emery.