He should have left Barca like 3 or 4 years ago. The mismanagement tendency was already there.
If Koeman stays, that's not a good mix for an Aguero+Messi...argie fellas do not tend to mix well with these kind of Dutch, the Rijkaard type is different because in many ways he is like a Jamaican Coco Basile.
But who knows, first Kun has to leave the full time clinic emergency area to even talk about how he will get along with Ronald (if he stays). Laporta can say whatever he wants but he will have to put his money where his mouth is if he wants to erase every trace from the former management and that's quite hard regarding currents Barca financial situation.