By Jake Polden Manchester United fans were in full agreement with Ally McCoist over the role Marcus Rashford was asked to play in Monday night’s FA Cup win over Wigan. The England striker has struggled for form this season and has netted just three times in all competitions for the Red Devils. Rashford may have seen the third-round clash against League One opposition as a great opportunity to return to goalscoring ways. But it seems Erik ten Hag had a different plan for the 26-year-old, who seemingly asked Rashford to come short for corners – despite the fact Bruno Fernandes had no plans of ut…