By Jamie Spencer Manchester United manager Erik ten Hag is keen to keep his influence over transfer business in the club’s new football structure headed up by Sir Jim Ratcliffe and INEOS, according to a report. Ratcliffe completed his 25% buy-in at the end of 2023, making United the latest sporting venture for INEOS – the firm already has OGC Nice, Lausanne-Sport and leading cycling team INEOS Grenadiers in its portfolio, as well as a one third share in the Mercedes F1 team. The British billionaire will lean on experts already close to him and Sir Dave Brailsford, famed for his ‘marginal gains…