I hated my Sunday so I just watched them all (once).
Liverpool 4-0:
1st goal: Free shot from 5 meters. Jones/Lindelof both gets outrun by Diaz. Dalot realizes he's outmanned on his side so decides to go off playing winger instead and Maguire is playing folding midfielder.
2nd goal: Free shot from 10 meters. Salah outruns Dalot and scores. The type of goal I would applaud if it wasn't Liverpool. Great piece of play.
3rd goal: Free shot from 12 meters by Mane. Maguire forgets that he's marking him.
4th goal: AWB loses his man. Maguire is doing some type of offside dance. Salah free shot from 8-9 meters.
Verdict: None of these goals are De Gea's fault.
Leicester 4-2:
1st goal: Maguire is trying to emulate Messi just outside own penalty box, goes wrong and ball gets played to Tielemans who lobs it into the far corner from the edge of the penalty box. Great goal to be fair.
2nd goal: Corner ends up inside box. De Gea saves a shot from 8 meters or so. It ricochets to the guy that Maguire single-handedly has kept both onside and unmarked at the near post.
3rd goal: We're 6v3 inside own box and Maguire is marking Vardy, but proceeds to deem him no threat and leaves him alone at about 11 meters. Free shot.
4th goal: Set piece. Daka is marked by Maguire, but cleverly sneaks past Maguire behind his back without his knowledge. Some move that as this leaves him alone at the far post with an easy tap-in.
Verdict: None of these goals are De Gea's fault. Also, all of these goals are Maguire's fault.
Manchester City 4-1:
1st goal: We decide to go for the 3 right backs tactic and this leaves us vulnerable in the box. Sancho has yet to discover defensive work and Telles/Maguire is 2v3 inside the box. Free shot by De Bruyne from 5 meters.
2nd goal: Foden channel his inner 'dinho and gets a shot off from 5 meters (saved by De Gea), City ends up 4v3 inside our box for about 3 eternities and eventually scores after some ricochet. Lindelof and Sancho with the best seats in the house just outside our penalty box.
3rd goal: City with a corner they've practiced. Free shot from 16 meters by Mahrez. Goes through everyone and into the far netting. We've got all 11 players inside our own box leaving just 1 City player in the box unmarked, but also noone picks up Mahrez just outside it.
4th goal: De Gea with a poor clearance under pressure. Telles tries to display knowledge of the offside trap, but VAR disagrees with his interpretation and Mahrez gets a free one-on-one with De Gea.
Verdict: I suppose you could blame him for the 4th goal as he gives it to a City player in the middle of our own half. McTominay is playing right back or something as AWB just about comes home from his adventure upfield as City scores.
Brighton 4-0:
1st goal: Precision shot by Caicedo. No way De Gea sees that shot. Great shot. McTominay doing his best spinning block move but to no alas. Through some legs as well.
2nd goal: Our team slowly jogs over from one side to the other as Brighton shifts play. They end up with 2 completely unmarked midfielders at about 16 meters. One of them scores. It looks like we're doing that tactic where we have 6 left midfielders and noone in the center.
3rd goal: Again they have a free man on 16 meters. He gets the ball and puts it in the net. Where's our midfielders?
4th goal: Ball played behind Varane who embarrassingly tries to intercept. Brighton end up 3v2 inside our box. At least we did what we could to prevent a Welbeck goal, because that would truly have been embarrassing.
Verdict: None of these are De Gea's fault.
Watford 4-1:
1st goal: We're 7v4 inside our own box and King is left unmarked at 5 meters. He shoots just to the side of De Gea and De Gea gets half a foot on the shot and fumbles it into the net. Would have had a better chance saving with his hands I reckon.
2nd goal: We leave Sarr free about 10 meters out and he hammers it home. Maguire seems busy marking the goal post.
3rd goal: Shot from about 6 meters. Goes in at De Gea's post. Lindelof makes the absolute minimum amount of effort in trying to block said shot. Should still have saved.
4th goal: Almost exactly the same as the 3rd goal, but this one is shot at the far post and I don't think De Gea is supposed to save it.
Verdict: I think De Gea could have prevented at least one if not two of these, free shot from 5 meters though.
In short, outside of maybe the Watford game there's not much that's down to De Gea.
Having watched the highlights it's absurd how many close range shots we allow, luckily a lot of them go outside the target and De Gea saves quite a few as well.
So if we break it down of these 20 goals there's at best 3 goals where De Gea could do better, 15 or so that's down to our shit team in front of De Gea and 2, maybe 3 goals that's fair play, well done to the other team.