It seems to us that a great deal of press and other comments about the supposed disunity within the UK cabinet about Brexit frames it slightly wrong. The cabinet is not split over what it wants from the Brexit discussions. It knows exactly what it wants.
The problem arises over what to do when it doesn’t get what it wants. and it already knows that you can’t always get what you want. The real problem is that the cabinet, in the language of professional negotiators, cannot agree on its BATNA, its Best Alternative to a Negotiated Agreement.