Amazon Prime’s new ’99’ documentary – detailing Manchester United’s journey to that fabled Treble – made for rather bittersweet viewing. How can you really enjoy the glorious past when the present is so miserable? Can you really bask in the wonder of that Ole Gunnar Solskjaer back-post poke when memories of a bonafide Manchester United legend are tainted, somewhat, by the way his managerial stint at Old Trafford ended? At least, with Ineos seizing control from the despised Glazer family, the Red Devils finally have people at the top of the club focusing on on-field success, rather than milking…