The sheer speed of the deal that brought Clinton Nsiala to Rangers from AC Milan took just about everybody by surprise. Rangers’ interest in the young French centre-back only emerged at the start of this week, Sacha Tavolieri breaking the news via his X account that a 20-year-old with ‘huge talent’ was on his way to Ibrox. And, before you could say the word ‘coup’, there he was. Clinton Nsiala, front and centre on the official Rangers website, his arrival talked up by an excited Nils Koppen. The contrast between that deal, and the one which brought Jefte Vital to Ibrox, could hardly have been …