That's the thing, the last one to be blamed here for the bad results that Manchester United had so far is the goalkeeper. They have some serious problems with their defense and I am not sure whether this will be solved quickly by Ten Haag. They have had these issues for quite some time now and all the results they had so far were not because of bad luck. It was because their team didn't work well enough for their defense. I think that this year will be even harder for them to finish top four.
We all know that one of the problems experienced by Manchester United is their fragile defense. They improved when they had a new duo, but the fact that they haven't performed consistently every game is a problem too. Now before the league starts and Onana joins the club it's a breath of fresh air for them, and Onana's arrival is also a situation where they have to lose De Gea who I think is still performing quite well.
Now is he (the goalkeeper) to blame when many concede but with a fragile defense? if many blame him I think it is unfair.
Even though Man United is having a bad performance at the moment and they have suffered a lot of goals so far but I think it would be unfair to blame Onana for causing all of that because no matter how good a goalkeeper is, if the defense line performs poorly, then it will be difficult for goalkeeper to get a clean sheet. A defeat will always be a shared responsibility.