Not so much about Arteta as opposed to the size of the task he has, and some pretty damning comments regarding the club/new structure.
https://www.football365.com/news/premier-league-2019-20-season-losers-rodgers-guardiola-watford-arsenal
Arsenal
It remains to be seen just how much time was wasted with the unimaginative appointment of Unai Emery in May 2018 – Mikel Arteta is no guarantee of progression – but Arsenal are at an awkward crossroads.
Emery, and the issues he and Arsene Wenger allowed to fester, left an unbalanced squad behind in north London. If the Spaniard is right in claiming that Arsenal were considering renewing his contract last summer, that is as damning an indictment as any on how far standards have fallen and how desperately the hierarchy will cling to any form of positive.
Arteta has already changed that and introduced a new culture of unity, humility and sacrifice for the team. He might succeed on the pitch. He might not. But let it never be forgotten that Arsenal put themselves in a position where they left an interim manager in charge for almost an entire month with no support before calling on an inexperienced coach to replace him and rescue them. The long journey back is underway.
https://www.football365.com/news/f365s-premier-league-expectation-table-man-utd-tenth-arsenal-bottom
20) Arsenal
Arsene Wenger only left Arsenal two seasons ago – Christ, that’s dragged. Since then they have spent over £200million and have nothing to show for it. Mikel Arteta has impressively righted a sinking ship by filling in numerous holes in a hull that had been peppered by insubordination under Unai Emery. But this was their lowest league finish since 1995 in a season in which they were strongly tipped to qualify for the Champions League. Even under the guidance of Arteta, expectations won’t be so high next season; he’s got a hell of a lot of work to do.