Has Trust Issues With Processes
Honestly the people getting really annoyed with Arteta, You're targeting the wrong per person / people.
If you appoint a manager with zero management experience it has to be baked into the higher ups expectations that he's learning on the job and it's going to be seen as a long term appointment.
Like when people say that Arteta is getting way more leeway than Arsène or Emery, I mean it's clearly true. He's being graded on a curve based on his experience level. No-one should be shocked by that. That's what you'd expect Kroenke and co to do after appointing him.
If people think that's a bad thing or unacceptable, take it out on the owners. It's clearly a gamble when the project seems to be to appoint a young manager, surround him with young, talented malleable players and let them grow together. I'm moderately pro-Arteta but I'm under no illusions that this project could well fail.
Where I draw the line is the lack of ambition stuff. Arteta is clearly ambitious, maybe overly so. Kroenke is clearly backing him to the hilt financially, that's ambition. This isn't Arsenal treading water anymore, they're blatantly trying to push on.
He calls way too many shots to be treated with kiddie gloves for years at this point. Bit of a joke really, but hey it's not my club.