I think Mcguire is catching a lot of undue flack. He is by no means the best centre back in the world, but that is not to say that he is a good one. Lindelof and Shaw have been the real issues in defense. Lindelof in particular has failed to prove himself despite being given chance after chance to develop a partnership with Mcguire. He lacks bravery and still finds it difficult to deal with physicality. His inabiity to handle certain situations on his own, forces either Awb or mcguire out of position, which hurts us particularly on the counter. I am not too worried about the defence as I believe given time, Tuanzebe and Williams will eventually displace both of their starting positions.
Our main concern defensively is our midfield. The inability of our midfielders to move the ball forward creates lots of counter attacking opportunities for the opposition. In addition to this ( by design), despite not offering any form of creativity, lingard/perreira play more as second strikers than midfielders, and in yesterday's case, if mctominay is not there to make up the ground to prevent counter attacks, we are really exposed. We find it difficult to keep the ball, as neither Fred or Mctominay are good passers of the ball. In most good teams in the modern day, at least one midfielder carries the responsibility of making up to 55 plus passes a game. These players usually have a high passing percentage as well. In cases where the lead is being held or a sustained level of possession is needed, these players help the team control the game with the ball. We concede as much as we do as we have noone to alleviate that pressure. Pogba showed us how it would be if we had a midfielder to help control closed games in the win against Burnley.
I also feel that our defenders try too hard to play the ball out of defence. It may be due to a lack of passers, but I still feel that due to the level of workers we have in midfield, particular in games Mctominay is playing, we have the advantage of height and aggression that would allow us to win second balls quickly and open up the game in the middle, as opposed to letting the opponent sit off us as we have for the majority of the season. If we can't break teams down that play deep, then we should force a midfield battle, statistics show that we would win the majority of the time as we win the majority of our aerial duels and second balls.