Agreed, its not just injuries as well, form too. I said this yesterday, we lack another winger but what Ole did was play without wingers.
None of our players were in form, Ole dropped them and all of a sudden, players are playing for their places.
Lets look at some examples.
Maguire off form - dropped V PSG and realised the team can defend without me
Pogba off form - realised that the team can play without him
Luke Shaw - Needs competition in the LB slot, saw it last season when Williams came through, now hes got real competition
Matic - Thought he can walk into the team.
Greenwood - V Palace Ole dropped him and brought him on at half time and played V spurs didnt track but then he saw 3 games without him and no one was saying we miss Greenwood, comes back and yesterday he was tracking back, sprinting back
Bruno & Rashford - came on yesterday and were almost possessed.