City is in the process in getting rid of some old players who are not really beneficial for them. I saw around 7 names are on the list include KDB, and Grealish. Let give them sometimes. They have signed more players to add more depth into their new squad.
Some new signs i.e Khusanov, Marmoush, and Nico are starting to shoot their bullets. They do pretty well since they come in, and i believe Pep is gonna cook with his new winning team soon.
I am sure Guardiola has already decided which players to keep and which to let go, some of the players who have just been brought in are starting to show their quality and that is very beneficial for Man City. The squad rejuvenation process is still ongoing, Guardiola will try to bring in several more players to increase the strength of his squad.
This season can be said to be over for Man City because several prestigious titles have disappeared from their sight, next they are trying to finish in the top four and form a new force to compete again in the title hunt next season.
I hope Guardiola gets it better this time around, he should have learned from his mistake and what happened to Man City exposed the club and showed that people praised it too much. People thought every angle you play in Man City has an equal or better replacement, but injury and lack of feat this season have proven that wrong. However, your last part makes the most sense, Guardiola's side might have bought, planned to dispose and even bought more later, but this season is gone, I don't know how Man City can finish the first or second position again, so let's save the higher praise in action till then, that's if he ever got it right again.