Yea, those points echo what I think and what other thorough analysts have said.
The case for optimism/pessimism/realism is in the open a bit, but I I believe Raplh Rangnick wasn’t far off something when he mentioned open heart surgery, and not necessarily because one particular player is bad. I think he was presented with the case that really both Solskjær and likely Murtaugh wanted - making a first step towards a change to a more proactive, high pressing form of football (his expertise after all) that Solskjær with his team tried several times but couldn’t implement. Solskjær managed a second, a third, a final and some semi finals catering to the strengths of several of the players (he had success with two very different styles for Molde before and after the Cardiff mess), but couldn’t make them take the next step. There are good players there in that original squad, not lazy, capable of ok results, but faced with the particular football Rangnick and later Ten Hag would decree, the squad was all wrong.
The biggest problem with Rangnicks diagnosis and cure, is that making money on a heart of players decared as unfit for staying is very difficult, and if you need to change ten-twelve players under FFP, you either have to use five seasons buying two top level players for €100m each every year, stumbling around mid table in the process, or you have to spread the money thin on five mostly underqualified players for two seasons, hoping for the best. We chose a the latter with a few exeptions, meaning that quite a few of the Ten Hag-profiled players are simply not City quality, cause you don’t get that for the price of a Malacia, an Eriksen, a Wout, an Amrabat, a Reguilon, a 19 yo Garnacho, an 18 yo Mainoo.
Our big spends have been Onana, Martinez, Casemiro, Mount, Antony and Højlund, and without delving into who wanted them and who negotiated for them, I’d say Martinez has been a success when healthy, Onana and Højlund started slow but are now looking very good, Casemiro was brilliant last season until he more or leas collapsed, Mount hasn’t really played yet and Antony is the only real bad buy, not because he wasn’t useful last year in changing the style faster, but because he should have cost €35m as a stop gap transition until we could put Garnacho, Diallo, Pellistri and a rejuvenated Sancho (yea right) there as emerging competition, and maybe strengthen the position in a couple of years. Noene of these players are ready made De Bruyne’s, Haalands or Salah’s though. Bruno and Rashford were supposed to be our backbones and key players this year, as they were for most of last season. I still wonder what happened to them, even if Bruno is always useful.
As you say, there are many issues, and Ten Hag cannot be automatically exonerated from any of them, least of all the injuries or form losses. But the compromises make sense given the issues, and only a thorough in-house evaluation can really reveal if Ten Hag is the right man to fix them or not, not you and me. Fingers crossed!