I'm far from convinced that bringing in players in January is going to be the answer to the current problems. There is more to it than just saying the current crop are not good enough. We have players like Fox, O'Ware, Banagan, Penrice, Cardle, Slater, Gordon (I know he's injured) de Vita and Zanatta who are all proven at this level and we have also seen something from Cole, Palmer and Kaky that show some talent, while Miller should still be able to cut it. On ability that is the basis of a decent side. The problem is that the team is not playing as well as the individual ability.
I'm not an insider, so I don't know what is going on behind the scenes, however it would appear that we are playing with a fear of making a mistake. The individuals are trying to do the easy thing, anything that doesn't put the blame on them, but because of that fear, they still manage to get it wrong ! They also, as a team, still don't manage to take direction from the dugout. I can see McCall trying to make changes, but they just fall into old habits, and this has now been a problem for 3 consecutive managers.
Rather that just bringing in new players who will fall into the same malaise, we need to find the root of this problem, which has been going on since we made top 6. We need to get rid of whatever that is before we can think about making any progress.
On Miller, I would not be surprised to see him go. He was clearly brought in under the impression that he would be inline to be the next manager. With Archie already being lined up to replace McCall, he will need to find some other route into management and I don't think he'll have too much of a problem in getting a player-manager role (probably to come back and haunt us).