Agree, talk down hear in gooner land was that Koeman was already slotted to replace Wenger, he must have known this when he left to join us. The way Arsenal are set up by the board is to qualify for the Champs league, not to win the title, I'm not saying they don't go out to win, but the board only puts enough money in to achieve the top four place.
If he goes Koeman will know that he will not have the resources he has here, and I would argue we have a better squad than Arse with more money to spend. If Koeman goes it will be to Barca.