Arsenal and Unai Emery start the rebuilding process in the toughest possible scenario and emerge with an unsurprising result, leaving us to wonder exactly how long the post-Wenger renaissance will take and whether or not it can survive Petr Cech's backpasses. Sam and James from The Big Diag will help us pick over these topics plus Emery's tactics, defensive covering and the likelihood of seeing an Aubameyang/Lacazette tandem in this early season roundtable...