I can't see Ba going, or Cabaye.
Ashley sold Carroll for £35m. That's probably twice to three times what he would really have been worth.
Ashley clearly had an agenda getting rid of Barton and Nolan, and Enrique clearly wanted out with less than a year left on his contract.
Ba and Cabaye are brand new, they seem happy. They're not causing trouble in the dressing room. They're both worth about £15m IMO. I can't see Ashley selling for less than £30m on either of them.
Ashley will sell, but I think he has more sense than to sell on the cheap. If one thing matters to Mike, it's money.
EDIT: I know Ba has a release clause, but I assume we'll be drawing up a new contract for him to rectify that now.