If Pool lose even half of the players mentioned (between TAA, VVD, Salah, Diaz and Nunez), they are potentially gonna take a significant hit next year.
At least city have some semblance of a plan in place for losing players like De Bruyne, Grealish (no big loss on the pitch), Stones, Silva, Gundogan, Walker, Kovacic. They will have Rodri back and have purchased some players in January that might be a bit more settled by next season. And they will bring in plenty more (unless they are sanctioned)
And we all know what our needs are. Extremely significant summer for the top teams.