By Samuel Meade Sir Jim Ratcliffe is facing increased calls to axe Erik ten Hag after Manchester United’s underwhelming FA Cup semi-final victory. The Dutchman’s future remains unclear as he struggles to find consistent results or performances at Old Trafford – and the club threatened to hit an all-time low before eventually beating Coventry City. United relinquished a 3-0 lead and had to play extra time with the Championship side. Coventry had a late winner ruled out by VAR before the Red Devils eventually made the final after a penalty shootout. Fans though were left underwhelmed by the team…