This isn’t just addressed to your post but to answer other parts too.,,
We were outplayed by Southampton in the FA Cup replay. We had Aston Villa running at us causing us all sorts of problems defensively, yet Aston Villa didn’t have a single shot on target this afternoon first half v Southampton. Plus the comments about how Mourinho is trying to fix the defensive issues. Chucking an extra player at it, by itself, isn’t going to make a difference. There are a lot of teams that play 4 at the back that don’t have a fraction of the defensive issues that we have been experiencing. There’s issues with defensive structure, positioning, tactics and meteorology which have to be addressed before just throwing another player at the problem and hoping it fixes everything.