Seriously? No half decent player would want to work under Pep for the currently most successful club in England over the past 8 seasons? Nonsense. Chelsea have had no issue buying the players they want despite being wildly unsuccessful in recent seasons.
Buying in January is tricky but Zubimendi has a release clause and Ederson plays for Atalanta who have had big departures. Yes there may be issues bedding then in but Haaland, Gvardiol, Savinho, Doku and Akanji have had to slot in with varying degrees of success.