A perfect start to a new campaign. Four outings, twelve points and a shade under three goals a game put away! At least that’s what it could, and should, have been for Manchester United if not for an uncharacteristic collapse in the dying moments. Not once but twice. So where does the frustrating problem exist? The answer may well be a simple one. While a mental assumption that a game had already been won could be part of the answer, the major factor may be a more worrying one.