Why don’t you explain it?
I'm not too good with tactics, but I will do my best to explain it.
ETH relies on good ball playing CBs and FBs to progress the ball up the field. Due to the fact how Ole and Mourinho had us set up, our back line isn't up to scratch. Only Shaw can do that. That why ETH added Martinez to the mix as well and that's why he also wanted Timber. Both of these guys were injured and our build up from the back started to immediately suffer.
The other piece to his success was FDJ. He was like a target man of sorts in the middle. If he was pressed he could keep the ball and bypass the press. If the opposition chose to sit deep, then he would find a way to unlock the defense either by carrying and releasing the ball in a dangerous area or by finding someone in a more advanced position. His vision was the absolute key why his first Ajax team was so dangerous.
In our current team there is nobody who can play that role. Eriksen is somewhat competent, but his passing is not as good and his legs are almost gone.
As a result, our passing is very poor in the build up phase as well as in the middle of pitch. Something oppo teams have punished us on numerous occassions.
I think if we were to add Todibo, De Ligt and Caquaret. That would improve our ball retention immediately. We also need to add someone who is more creative/hard working than Rashford and a more experienced CF that can deputize with Hojlund and we might be on the up here. If only someone like Cavanni was available right now to mentor Hojlund, we would be in a very good position