It is time for Mikel Arteta to get busy in the transfer window as Arsenal will finally have a chance to play in the Uefa Champions League again after missing out this major tournament for such a long time. I think Mikel Arteta might need to get in better centre-back defenders as their defense does look kind of shaky whenever their opponent launch a fast counter attack resulting in Arsenal conceding goals.
Yes, that's something they have to do, because they will be in a big and competitive competition, the English League and plus the Champions League. Like it or not, they must make improvements so that their squad is stronger and more solid to navigate the coming season. They have a good squad at the moment, but I think it's still lacking, especially when they start to look like they're dropping as the competition starts to come to a close. They will definitely experience a very busy schedule, so they must prepare for this in earnest. Main players and second tier players have to be equally good, because when the schedule is busy the players usually experience fatigue which in the end they have to rest.
Arsenal will face a big challenge next season and regarding the competition they will be wading through, of course it will not be easy, on the other hand Mikel Arteta will definitely try to compete again with Manchester City to win back the EPL title which they previously failed to get this season. But it's not only that, sometimes Arsenal seem to lose their way in the middle of the season and they have to fix that so they can continue to win consistently.
For the champions league, I think Mikel Arteta will fight hard with his players to get through the rounds well to get better achievements because we know Arsenal were last in the champions league in the 2015/2016 season and it was a long time ago. For second-tier players, it is clear that the quality is not balanced, but for sure Arsenal will not be unable to compete with other teams to get additional ammunition for new players in the summer.