This summer was always likely to be one of considerable change at Manchester United. But, still, the sheer speed with which Ineos have overhauled the backroom staff may have taken even the most optimistic Red Devils supporter by surprise. Dan Ashworth’s arrival was months in the making – the former Newcastle chief finally confirmed as Manchester United’s sporting director on Monday – but the imminent appointment of recruitment expert Christopher Vivell, in contrast, came right out of the blue. With Ashworth joining Jason Wilcox, Jean-Claude Blanc and Omar Berrada – and with ex-Red Bull talents…