T20 World Cup - What Have We Learned From This Series?

England beat Pakistan by 67 runs in the final T20 at Lord's. England have a good crop of young players coming through, some who will be going to the World Cup and some who won't. But I don't know if England have actually learnt loads going into the T20 World Cup because of how different it'll be. There are questions that they've got to answer before the tournament starts. Is Joss Butt the Fit? Who opens with him? Where does Ben Stokes slot in? How much can they get out of Mark Wood? What about Chris Wokes and is Chris Jordan fit? That is a lot of questions for England to answer between now and the start of the