#1 Dropping Lukaku
Every club needs a centre-forward who can win games single-handedly. After suffering a career-threatening injury, Zlatan Ibrahimovic left Manchester United in the midway of the second season which made Romelu Lukaku the sole striker in the team. Though Rashford can play as a forward, Mourinho prefers to use him as a winger.
The Belgian international had a good debut season for the Red Devils and an even better World Cup following that. But in the current campaign, he is nowhere close to his best. For Belgium, he is still managing to bang in goals, but for Manchester United, his lack of confidence is visible which has made him squander easy opportunities to score which could have altered many games otherwise.
Romelu has been playing continuously without much rest due to the lack of options on the bench which might be hindering his chances of getting back to form. The fans have been calling for the manager to drop the centre-forward for a couple of games which might make him more desperate and perform better to regain his place back.