As for Arsenal's goals, for many years they were happy with Dortmund's model of "buy a rising star and sell him for twice as much in a year or two", but now their management is seriously aiming to achieve at least some kind of title. I wonder if Arsenal don't win anything again next season, will Arteta be under threat? But against the backdrop of many other young coaches who have come in and produced results in their first season, his achievements already look questionable. If you were the club's management, it would be logical to assume that the obstacle could be not only in the players but also in the coach.
Arteta may need to win some silverware next season if he wants to keep his Job secure. I think the Arsenal folks have been patient enough, and that patience may wear out soon. The only consolation they had last season was beating Real Madrid in the UCL and qualifying for the next round. That may not be enough next season.
You would think that after spending that much money, they would be having a few trophies to show but no.