By Jude Summerfield Manchester United are set to complete a stunning swoop for Manchester City chief Omar Berrada and make him their new CEO. Previous incumbent RIchard Arnold left Old Trafford back in November as INEOS continued talks to buy a 25% stake in the club. Berrada was chief football operations officer at City Football Group, playing a major role behind the scenes in their success in recent years and working closely with director of football Txiki Begiristain. However, his departure from last season’s treble winners has now been confirmed. A City statement to The Athletic reads: “Man…