Working collectively is key to delivering optimum post-Brexit outcome

And this is not merely a question of a single deal with the EU, but rather, will require, as Charles Grant from the Centre for European Reform has pointed out, multiple sets of overlapping talks. First, to secure exit from the EU. Second, to agree a Free Trade Agreement (FTA) with the EU. Third, to put in place an interim deal to cover the period between the end of membership and entry into force of the FTA. Fourth, to accede to full membership of the World Trade Organisation. Fifth, to replace the FTAs the EU has signed with 53 other countries. Finally, sort our foreign defence and security policy co-operation.