The Liverpool team is not able to perform as before. Because some players of this team have left the team and the balance of the team has been lost. What kind of role will the coach of the team play in the next season, we just have to wait and see.
Some players that left Liverpool really affected them last season, they really struggled last season but they were able to balance a little bit before the season ended, if Liverpool coach knows what's good for him, he should just get more experienced players when the transfer window is open to replace the once that left last season so that the team will be able to balance, if he didn't get new player's then it's going to affect him in next season.
if there are no changes to the man city squad until next season (such as a player being injured or sold) then nothing will change with man city's performance, the thing that is difficult for a team to maintain is consistency and many great teams have experienced it (like man utd, chelsea etc) next season is very challenging for man city especially man utd has shown good improvement in the hands of ten hag.
I don't think Manchester city will maintain the same squad, they will definitely go for new players also, let's just wait till when the transfer window is open then we will see the players that each teams will be going for. But if they are to maintain their current squad, It's going :to affect them a little bit next season. But am sure every team will be looking for talented players when the transfer window is open.