Most supporters don't really understand what they are watching. They don't understand what is hard to do and what isn't, if they haven't played the game to any sort of level (and I include decently organised amateur football in that), and they don't understand what good and bad decision making looks like.
I think that's why many are obsessed with "highlight reel" plays like big blockbuster tackles or goal-saving tackles, dribbling and long distance shots.
I think there are some basics we get badly wrong on the regular...
1) Passes not hit with the right pace / weight. This is inexcusable and comes from a lack of self-confidence but also a lack of confidence in your teammates. This takes all the pace out of our attacks and allows opponents to set themselves. Some of it comes from not having an understanding with your teammates i.e. where they will run, how they want to receive the ball. This is why Amorim needs to stop chopping and changing now. We need to see partnerships and patterns being developed.
2) Duels lost. We lose far too many 50:50 and 60:40 duels. We have a tonne of players who just don't know how to fight for the ball effectively without fouling by using their bodies and going into tackles with 100% commitment. You can't sustain attacks and prevent counters if you lose too many duels. We need to weed out the weak who simply don't have the physicality to play at the top level.
3) Defenders too deep, Onana too deep. I have never understood why we haven't remedied this. Move them all ten yards further up the pitch and have Onana sweep. I thought we were buying the perfect sweeper keeper, but he hardly leaves his box - must be tactical. It makes it so much easier to sustain attacks if we're squeezing right up the pitch.
4) Hopeless crosses. Our players are not patient enough. After making a few passes and running into a set defence, they will aimlessly throw a cross in. I absolutely hate this. We have nobody who can actually win / score an attacking header, so even if we had David Beckham whipping them in, it's a poor, lazy choice when the opposition back four is set and we have nobody to attack it. Its wasteful and stops us sustaining attacks.
5) Hopeless shots. See above. We shoot from outside the box far, far too often. Someone will pop up with some stats about "how we only shoot x compared to y" but I don't care. My eye test tells me that all of our attackers are a mixture of selfish and slightly brainless, in that all they want to do is work half a yard to blast it mindlessly at goal. Amad, Rashford, Antony and Garnacho only want to cut-in and blast it. Fernandes often shoots from ridiculous range. Even Dalot is a massive culprit. We need to stamp this out. Its wasteful and stops us sustaining attacks. In fact, this would be the number one thing I'd cut out, and it frustrates me so much that we never do anything about it. I'd tell the players - until the end of the season, no shooting from outside the box. If they then DID shoot from outside the box...immediate substitution, no ifs, no buts. In the long run, I accept that shooting from outside the box is a useful tool, but until I can trust players to consider all options properly, I am banning it.
6) Terrible set-piece defending. I really don't know what's going on here...why was nobody protecting Onana and Bayindir vs Wolves / Spurs? That's the oldest tactic in the book, have a man shove opponents away from the GK. Why don't we have anybody on the posts? Why do we always have tiny, weak players blocking the opponents biggest and best headers? Most teams will only have one or two players who are a genuine threat at set-pieces. The rest are a distraction. Ignore all the nonsense going on and mark the two best headers...i.e. if it's Arsenal..forget all that other nonsense...two best blockers on Saliba and Gabriel. I don't care if Trossard, Martinelli or Saka get half a yard...they'd miss 99/100 headers anyway.