The Manchester United supporters have dreamed of days like this. When signings are chosen not for the amount of shirts they could sell but for their suitability to the manager’s gameplan. Longevity and potential over fame and reputations. It’s been a long time in coming. A fanbase long since disillusioned with that gluttonous Glazer reign have long since prayed, too, for days when signings are chosen not by bankers and businessman but by those from a footballing background. Hence why the appointment – albeit the initial short-term, interim appointment – of Christopher Vivell has been met with …