It's easy to get in 15 players like Chelsea, but not easy to get 15 players to improve the club.
I prefer to go the way of West Ham, buying class instead of mass. Making a few changes, but not a total overhaul at the end of the season and make this yearly.
West Ham lost their best player with Rice, got in Kudus, Mavro, JWP and Alvarez for basically the same price. And that's what we got to do with the remaining money of Onana/Branthwaite, adress our problem positions to fix them steadily.
They got 2 good players in for Rice and more depth with Mavropanos and Kudus and they all play a good season.
Liverpool made an excellent business as well, getting Szobo und MacAllister (some of the best player of 22/23 in prem and Bundesliga), with the bargain Endo. Gravenberch doesn't really work that well. But they had to replace important players of the last few years with Henderson, Milner and Fabinho.