If Manchester United cannot win this cup, this season will be a very unsuccessful season, and they are aware of that. That's why they will do whatever it takes to be successful in Europe.
Maybe their current target in the EPL is just not relegated. They are trying to keep getting points without big targets. Then they focus on the Europa League. Maybe realistically the Europa League still has many different opportunities than the EPL. After this season ends, maybe Amorim will make a lot of big changes. Amorim may take advantage of the transfer market to add strength next season. It looks like they will suffer the same fate as Arsenal or Chelsea are in the bottom of the table. Against Nothingham is realistically maybe 1 point to take home.This weekend Manchester United will visit Nothingham's headquarters this weekend, it is really a very difficult job because Nothingham's performance is very impressive this season so I think there is no need to expect more for the results of the match, maybe getting 1 point is very good for Manchester United.
On a serious note, the loss has tarried for too long, as the management wrongly thought it was the coaching issue in the wake of their problem, but sacking José Mourinho and later relieving a diehard supporter like Ole Gunnar has not changed anything yet. That is why I think junior coaches like Amorim will only try, but may not witness serious results. As for the match with Nottingham Forest, it's a loss for Man U already, unless they are lucky, because Nottingham Forest is no joke this season and the match will take place at the City Ground.