It was certainly a version of Manchester United that looked much closer to the ideal that the club have of themselves and even Jose Mourinho, if he could watch, would have to admit that this was an evening when the country’s most successful club did what it is supposed to do routinely. For the first time since Sir Alex Ferguson bade farewell with that 5-5 draw with West Bromwich Albion in May 2013, United scored five goals in a league game – a perfect start for Ole Gunnar Solskjaer even if this was a Cardiff performance as listless as anything when he was their manager. As for United, they cannot sack a tyrant every week to get this kind of performance from their players and after the bounce of a famous manager dispatched mid-season, further strides will have to be made. Even so this was a promising performance, one of sharp passing and sharp finishing, the goals spread around, including one each for Marcus Rashford and Anthony Martial and two for Jesse Lingard, a forward line who have gone in and out of favour so rapidly it has been hard to keep up. Between the three of them they seemed…