Dissolve our right wing. Mata on the right means no right winger, which meant young was right wing, which meant again - no right wing. Also, playing both lukaku and mata up front means you have dissolved your high press.
You are now an ordinary mourinho team.
Mata still has use but not on the ‘right wing’. Not when you want to press high and break with pace.
So again, no right wing - you now need more out of striker and left wing. Well striker is lukaku who still pretends to play off shoulder of defender to hide from the game. That leaves left wing which was rashford, Shaw and pogba which is now easy to predict and defend.
We would have had a different game had rashford scored that chance but I’m glad he didn’t because this has drilled it into Ole’s mind that the whole mata young lukaku right wing is atrocious. Bonus is we got a thrilling end too