Yes, the FA Cup trophy was the reason why Erik Ten Hag was given another opportunity to remain as Manchester United's head coach because Manchester United's management believes Erik Ten Hag would turn things around in Manchester United this season. But from what Erik Ten Hag has shown in the Premier League so far, it seems like Erik Ten Hag would not live up to the expectations of Manchester United management. If Erik Ten Hag fails to deliver a convincing win against Southampton this weekend, his job will be at risk.
That assumption Manchester United management had then was a bad one because they should have known that if Erik Ten Hag would turn things around he would have even done it when the premier League was still on last season but he did nothing, if they had more remaining matches on the premier League then before they play the FA Cup they would have understand that Erik Ten Hag has nothing much for Manchester United because they would have noticed it, in other words if that's really the reason why Manchester United management decided to give him another chance I wouldn't blame them because that was the last match for them and wining Manchester City was a promising one, so it clouded the decision of the club management.