Buying new players does not make City any ready for the new season, I only shows they are consciously making preparations for the new season, they will need more than buying of this new player to show that readiness and do not forget that you can have all the players and still not be as ready and may even still be behind other teams when the season eventually starts. Liverpool needs that replacement els they will have to make a substitution using the alternative or making one of their attackers a false striker.
it is a necessity for now if late transfer of players in the value can bring a wider gap. it is a way to anticipate in strengthening a team so that indirectly can strengthen between the players. Likewise Liverpool they have prepared players by taking transfer steps so that there is enough space to prepare in the match next season.