As things stand Xavier Benjamin is 4th choice CB. He needs to go out on loan - although nothing happened yet. We need at least one more senior, experienced, competent CB.
Ng is not good as a CB in a back four. Fine as part of a back three/five - but can't see Bulut playing that much. Romeo or Adams can slot in as emergency cover - but only that. Danny Batth would be brilliant - although I will be very surprised if it happens.