Arteta was not too bad to be Arsenal coach because he was able to make a change after replacing the previous coach and even in his first season as Arsenal coach he managed to present the FA Cup title. What Arsenal needs to do to build the confidence of the players because mentality is important in an effort to achieve success. If this season Arsenal fail again, the next season it will definitely be far more difficult because there are many teams that may have made changes so that it will make it difficult for Arsenal to compete. If the mentality has not been formed properly, it will be difficult for Arsenal to achieve success in any competition because they do not have more confidence.
Mikel Arteta is not a bad coach but he has not been able to meet the expectations the club that is targeting the EPL title but Arsenal is unlikely to fire Arteta just because he has not been able to meet expectations because so far Arsenal has performed stably in the EPL even though he has not been able to win the title, Mikel Arteta has only been able to provide the runner-up position for the last 2 years and this season seems to be the same I am sure that over time Arteta can meet the expectations of this club all it takes is a process to be able to build a strong mentality to compete in the hunt for the EPL title.