14Henry
Looking for receipts 👀
Even Arteta isn't bad enough to go out of a compeition a day early.Going for Sarri or Howe is just sacking a manager and then going for someone else for the sake of it. No longevity in either of those. If Arteta goes out of the EL tonight for example and needs to be replaced in the summer you go for the very top or you persist with Arteta.
As for your theory it's ridiculous. It's like saying if you can't upgrade a pushbike for a Ferrari then you may as well keep the pushbike instead of opting for something like a Fiat.