Not sure what game you were watching?
I'm not sure playing well for 12 minutes of a 90 minute (plus stoppage time) constitutes playing well tbh.
Pogba was average at best, at best - I am still struggling to see what other people are.
Rashford was trying way too hard and failing, he needs to improve on his final ball (crossing & freekicks, corners seem ok). So much potential.
Matic has started ok actually, can't ague there.
Lukaku is one of those frustrating strikers where he will score a goal but it will take five chances. One goal wins are the (usual if not drawing) Mourinho though, and 3 points are 3 points at the end of the day.
I maintain being a big fan of Mkhitaryan, he looked more like himself last night.
CB partnership is a concern yes, if only you had 2 £30m CB's, hmm.