Disagree. Sack him now. **** the sunk cost fallacy. If you sack him now, we might even be able to convince Guendouzi and Saliba to stay.I was all for sacking Tets until the last summer window happened, but too much has gone into it now where you can't sack him lightly anymore. You'd have to find a coach that sees Ben White, Ødegaard and Ramsdale as starters otherwise that's a lot of time and millions wasted.
This just has to play out, you have to be Arteta in now.