Manchester City already has depth and I don't see Pep having problems as a result of a couple of players leaving the club. Although, they have lost a top quality player like Gundogan to Barcelona, Kyle Walker is reported to be at the verge of joining Bayern Munich anytime soon, and Mahrez is also linked to a Saudi Arabian club side, but the team is still solid. Pep has done well to re-reforce his team by acquiring Mateo Kovacic from Chelsea, and working on deal to bring in Benjamin Pavard From Bayern as Kyle Walker's replacement and Josko Gvardiol from Leipzig.
Man City will have no trouble even though several of their players have left Kub in this transfer market. Pep Guardiola knows his squad very well and he can't hold back players who no longer want to wear City shirts for next season, on the other hand we can see that their back-up players also have the same qualities as the main squad.
Mateo Kovacic became a replacement for Ikay Gundogan who went to Barcelona, Pep really knows the quality of a Kovacic so he wants the services of a player from Croatia. Statistically Kovacic is the player who has won the Champions League the most, namely four times, his mentality and experience I think made Pep interested in recruiting him.