Expectations for Arsenal last season in the Champions League were actually quite good, especially when they performed consistently in the Premier League, to the point where many predicted they could get rid of Bayern Munich in the quarter finals.
Logically Arsenal is highly recognized when it comes to being passionate in the UCL but in terms of being consistent in the EPL, I doubt it. If Arsenal looks consistent in the EPL they will definitely not finish in runner up position but should lead the EPL.
In fact, Arsenal ended the season empty handed, without a single trophy in their cupboard. This failure was very disappointing for fans, because Arteta had built a very good squad with a number of expensive players in his squad.
IMO, Arsenal just needs a big mentality to get the UCL title and experience is an important role for the team that will get the title in this prestigious competition. I admit that the Arsenal squad is very perfect but still cannot accept the bigger challenge in this UCL and yesterday against Bayern Munich was a great opportunity when Munich experienced problems with their squad but still Arsenal lost 1 score to Munich.
Next season, if Arsenal perform consistently in the Premier League, it is likely that they will perform with the same performance in the Champions League, but Arteta would be better off prioritizing winning the Premier League trophy first. Because theoretically, the competition in the Premier League is more capable of being controlled by Arsenal than the Champions League, even though the number of matches is much different.
Well, this is what I mean. Arsenal doesn't need to be too ambitious about chasing the UCL title but rather focus on building a squad mentality by focusing on the EPL to get the title and automatically Arsenal players will have increased self confidence and be ready to chase prestigious titles in the future.
All of this depends on the coach who manages the squad and if next season Arsenal performance does not match expectations, it seems we know what Arsenal will do with Arteta.