A win tonight would be wonderful, but in the bigger picture I don't think a win, draw or loss changes anything.
I think overall Koeman has probably been disappointed by a number of players in his squad. I think that before joining he may have believed it was stronger than it has proven to be.
I think at present it is a holding exercise for him, until he is able to bring in the players he wants. I can imagine that he would like to add players in January, but it is a difficult time to buy good players so we will have to wait and see what happens.