Moss
International Captain
I think we've seen that a combination of the new ball plus favourable overhead conditions can be quite deadly in this series. With NZ's most test-style batsmen in Latham and Williamson dismissed I think those two decided a counterattack was the best measure, otherwise a ball with their number on it might turn up. So it was possibly a disruptive move that was needed against Anderson and Broad, and TBF it was a better move than playing defensively for Guptill at least.I don't know why they did it; but if it was to get a very very healthy lead before the 2nd new ball is available then it was a smart move IMO. We all know what Anderson and Broad can do with a new ball. Just imagine being 240/4 after 80 overs, and then losing the last 6 to the 2nd new ball.
If they did have an eye on the second new ball, that's pretty ambitious but not beyond the think tank (when you consider their explanation of why Watling went ahead of BMac at Lord's).