Actually it doesn't matter when Chelsea spend a lot of money to shop for players, as long as they make effective purchases, meaning that the players they bring in will make a big contribution to them. Meanwhile, what I see from Chelsea is that they buy players while the players do not make much of a difference to their game, especially in the last season. This season I see better than before, but I can't be sure if they will be able to contribute fully throughout the season or not.
The effectiveness of bringing in players must also be considered, I am talking about this not only for Chelsea, but for all clubs.
Mauricio Pochettino has attempts to build new era for Chelsea that's why he was very active this summer to bought some players and i have counted it at least Chelsea buy 9 players in this transfer window and indeed not all transfer will be very effective because possibly some of transfer will be failed and so far only Nicolas Jackson who can adapt quickly with Pochettino strategy that he was being an Chelsea key player for forward lines and i have to says he has showing consistent performance and he was already scores goals several times this season
Some players still required to adapt just like Moises Caicedo that some of fans has been criticizing his performance and considers he is overpriced because he was made a mistakes when Chelsea lose from West Ham few weeks ago and Chelsea too a bit unlucky because their new player who transfered from Leipzig Christopher Nkunku is got long term injured
I completely understand if Poche wants a composition of players that suits what he wants and brings in a lot of players in the transfer market, but once I will say that he must be more selective in recruiting players, so that the players he brings in do not become failed transfers and of course it is just a waste of money.
I also saw that he was too hasty in targeting the players he wanted, so that happened. Of the 9 players he brought in, only a few players can be seen and the majority of players are almost unable to show their abilities. I'll probably have a different attitude when more players are contributing than not.
Even though what you said makes sense, I think things like this we also need to realize that adaptation is necessary. What Chelsea have done in the last 2 seasons is that they only reshuffle and reshuffle with the desire for instant results for them but in the end when the reshuffle continues and is done on a large scale things like this can also trigger them not being able to play and get good results because not all players can immediately fit into a new environment, so with this they must realize that not everything can be overcome by transferring players because no matter how much they spend money but do not want to process and only want instant results alone it is difficult to happen.
The adaptation process may be the only consideration for us to judge their play, but with the time available and now entering week 5 it should be enough for some players. Maybe 1 or 2 players from the number they brought in should need more time to adapt to it, but now most of them have not reached that point. This makes us speculate and start criticizing their game. and I think slowly some transfers lead to failed transfers.