Arteta wont last until November, heck I'd be surprised if he makes it to end September.
There is no way things are being overblown at the moment, these are very common signs of unrest behind the scenes, now spilling over to the pitch.
The question for me is how we prevent this total collapse from happening with the next person in charge. And for me that question must be addressed decisively now, with proper professionals coming through the door next.
We need Edu and Arteta to walk, Vinai too if possible. Bring in proper pros to start the rebuild towards some sort of European competition again.