For a
side that could effortlessly generate a total revenue circa # 500 - million plus in a year, every year — backed by a seismic TV deal, matchday revenue and
commercial tie - ups left right and centre, the idea that United still play with a back four largely composed of Chris Smalling — a limited defender whose prime period has more often flattered to deceive than not, Ashley Young — a winger turned full back who is only getting older and Antonio Valencia — another of those reliable yet over 30 - year old footballers at United — with less potential to grow as a footballer.