I see your point, but when was the last time Mourinho was a rebuild manager? He made quite a few changes when he returned to Chelsea, but that was nothing compared to what United has needed to do since SAF left. Ever since that disaster with Moyes, it's like there's ungoing overlap between one manager's squad and the next and nothing is coming together.
I agree that a rebuild is the way to go, but we had that kind of manager the last two seasons. He was disappointing in a lot of ways, while there were also positives that have been swept under the carpet. I really thought we were onto something with that young core of talent but fans were bollocking LVG's talk of 'building foundations' and now we've got Mourinho, which indicates that the club is looking to get CL birth/title contention right away, today.
So I don't think fans are resetting expectations as much as trying to deal with how poorly Mourinho has been, because he came in with the plain expectation to start winning games. Which he isn't.
He isnt a rebuild manager and that wasnt what you brought him in for. But plans change, and hes gonna
have to be a rebuild manager. LvG had the right idea, but it wasnt executed well. Even as an "instant success" manager, I feel Mourinho could do a better job at rebuilding than LvG could.
As for how poor Mourinho has been. In terms of instant success? Cant say yet, but after the games we've seen, this is not how everyone envisiged your season starting. After 3/4 games I think this season, when everything seemed fine and dandy, I was saying how you're guranteed for the title. As were a lot of people, you were sitting pretty near the top.
But I really do think its just fans having to re-adjust their expectation, before a ball was kicked the names of Pogba and Zlatan and Mhik were driving fans to believe that you would win the title straight away. Well.... now you know thats not gonna happen (probably), and
the process of lowering the bar is not something that is easily done. Its a process filled with hesitance "should I lower it? Should I leave it? If I leave it i may not hit he target, but then if i lower it isnt that kinda like cheating? Since im making it easier for myself" Its a process filled with anger, since you feel like you shouldnt even be in this situation to begin with.
Thats my opinion anyway, I think
had Jose come in and said its going to be a long process, this season Im aiming for top four but really I just want to cement my style of football. Then fans would have more paitience. But he didnt. He came in and it seemed like he was gonna blow the league apart and return the glory days within in a blink of an eye.