#3 Deploy Rashford on the right wing and Martial on the left wing
United's trouble so far this season have been their inability to break down opponent's back line. They struggled a lot when teams sit back and play a defensive game.
Except for Marcus Rashford, there is no pace in this United line up, which lead them to make more horizontal passes than vertical ones. Jose Mourinho was reluctant to use Rashford and Martial together and always leaves one of them on the bench. But he needs to revisit that strategy very soon if United wants to change their fortunes.
Rashford on the right and Martial on the left will allow United to attack from both flanks and both of them deserve to start for United, given their performances so far this season. Both combined, have 10 goals and 7 assists so far this season and have been equally impressive.
Martial has the skill, pace and trickery that United are missing this season and starting both of them along with Lukaka and Ibrahimovic upfront seems like a mouthwatering proposition. This will give United a multidimensional attacking option, making it hard to defend against.