I believe Arsenal will make good use of the current transfer window ahead of next season which is almost starting and with their current formation I still believe that Arsenal will perform better than last season, at least the club spends a good amount on players and has made good choices in management. But the club that has been left behind and calls for concern is Chelsea, they have not made any significant changes since last season and I don't want to believe that the club will want to face the next season with their current formation, because doing so will further lower the standing in on the league table and closer to relegation.
So far Arsenal have shown us the impression that their transfer has had a positive impact on performance. Jesus has proven himself to be worthy of first place this season after being very convincing during pre-season. He will be relied on up front for Arsenal this season and I'm sure he can do better without too much competition.
It's good Arsenal fans hope to compete in the top flight this season after Manchester City, Chelsea, Liverpool and Tottenham will also be fighting for places. If their performance during pre-season can be maintained, then the top four position is likely to be guaranteed this season. Their transfer policy so far has had a positive impact, especially after they managed to get two good players from Manchester City.