This is how I see the team
GK: DDG is a fantastic shot stopper but he provides little else. I don't see that as a criticism for two reasons. First of all this guy had been bailing out for years, secondly he's part of the furniture so all managers could and should have built a defence that works with him around.
DC: Maguire is the typical old fashioned stereotype English CB. He's big, he's tough, he's slow and he's not particularly bright. For some reason he think he's some Rio Ferdinand and will try to either go forward with the ball or give these long range passes. That's not how he should be played. The guy should be playing deep (which would compliment DDG as the guy would never leave his small box) and told that's he's not particularly bright. The only CB we've got to compliment him is Varane. The French man has talent, pace and experience. However Varane is constantly injured and gegenpressing won't help on that at all.
FBs: We've got two options here. Dalot is decent going forward but weak in defending. AWB is like a RB stuck to 80s football. He can be decent in defending but he's shit going forward. None of them is good enough to play with United. Shaw can be decent but he's hardly WC and Telles is great going forward but is not a great defender either. So in my opinion, if we're playing Telles then AWB should play. If we're playing Dalot then Shaw must play.
DM: Do we have one? The answer is no. McT is B2B and quite frankly he's not a good player either. Fred is also B2B and is slightly better then McT while Matic is more finished then Bryan Robson after a night of binge drinking night followed by a brawl against Tyson Fury. God knows why smiley kept him (and Mata, and Grant, and brought Heaton in, and kept Lingard here, and VDB etc)
B2B: If we had a top DM then maybe we could play VDB there. Since we don't then McFred pretty much pick themselves. I won't mention Pogba as its evident that his heart is not there.
AMC: Bruno's performances had nosedived since he decided that he's a shadow striker. Someone should really put the guy back in the box as he thinks that he's some sort of a Zidane, Charlton and Maradona wrapped in one. VDB was never really given a shot, Martial is too lazy, Lingard is too shit, Sancho is a winger and Mata is more spent then Matic is
STK: Ronaldo needs to whinge less and deliver more, same can be said about Mother Theresa of Manchester, Greenwood is a generational talent but he hardly has any role models on the pitch and its showing, Cavani is mint when fit.
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What the club should do
Invest heavily in January - A new CM is the bare minimum, we really need two.
Get rid of players. Jones, Pogba, Martial, Lingard, Matic and Mata should go. Its time we set up standards at this point. More players should be added to the list in summer
What the manager should do
A- Spot the rotten apples and sell
B- Gegenpressing is fabulous but this team isn't even bothered to run. Maybe a tweak is needed in our tempo and then we can progress once and if things hit the ground running.
C- 4-2-2-2 is as common in EPL football as Aramaic is at No 10. Asking these players (who are not particularly motivated and bright) to adapt to a new system, a new tempo and start passing the ball at blistering speed/accuracy, during mid season, is a bit too much. Most won't be able to do it in a life time let alone a couple of weeks.
Thus he should go for a system that they comprehend (4-3-3?) and maybe he should demand less from his players.