It seems that Arteta continues to look for players to cover the shortcomings of last season. From defenders, midfielders and forwards. Of course Arteta must work correctly to eliminate big mistakes at the end of the season. For strikers Arteta has got Jesus, he performed well but was not consistent, then Arteta got Kai Havertz but at the end of the season he was also inconsistent. For the rest of the season, Havertz cannot be the solution for Arsenal's attackers. Because that any rumor has it that Arteta is very interested in Serhou Guirassy and Jonathan David.
Source:
https://www.mirror.co.uk/sport/football/transfer-news/arsenal-transfer-news-arteta-guirassy-33104935They don't need a new defender right now, maybe when Zinchenko or Tierney leaves bit right now? Tomiyasu and Jurim Timber are good options. Having said that, I do think they had the best defense in the Premier League Competition last season as they did dominated nicely with the partnership of Ben White, Saliba and also Gabriel.
For the midfielder's, they need a replacement for Thomas Partey whether he leaves or stays, Arsenal cannot make much mistakes with letting him go when they have got no good replacement for him. They should also make good use of Fabio Vierra he is a good midfielder and can also be used on the right wing in the absence of Saka.
They should be seriously looking to sign a player who can give them 25 Premier League Competition goals. If they can get that, winning the Premier League Competition next season is a must.