England 38 New Zealand 21, Twickenham, December 2012 and Ireland 40 New Zealand 29, Chicago, November 2016 – those two results would have sat at the top of Farrell’s c.v. as Warren Gatland picked his British and Irish Lions backroom team at the start of this month for next summer’s tour. But the Wigan man laughs when it is suggested he may have found the secret of how to stop the All Blacks’ juggernaut.