Arsenal's squad has been quite strong this season. And because the bonding between the players was strong, the team was consistently able to perform well. However, Arsenal faced major problems due to injuries to several key players. Arsenal do not have suitable replacements for their players. So suddenly Arsenal's performance deteriorated and Arsenal was not able to get back on track. And Arsenal's performance so far has been erratic. Arsenal will definitely need to strengthen their squad if they are to win the title next season. Several talented players need to be added to the squad.
Yes, it's true, the depth of the squad that distinguishes Man City and Arsenal, it is difficult for all teams to maintain consistency in the game, only relying on the core players, but when these players are injured there is no equivalent replacement. Because sooner or later you will underperform while the backup players are far from the core players.
If a team's goal is to win the title then their bench team needs to be strong. Because no player can play an entire season without injury. When an important player of the team suffers an injury, the performance of the team deteriorates if there is no suitable replacement. Arsenal's performance would not have deteriorated if their bench team had been stronger, or if they had had competent replacements. This team could consistently perform well. Arsenal have been very industrious this season. But in the end they could not win the title. Arsenal's management should learn from this season's mistakes. And if their aim is to win the title next season, they will certainly need to spend money and strengthen the squad.