The former All Blacks coach Laurie Mains believes it's vital the team develops its ability to go to Plan B when Plan A isn't working.
Saturday night's historic loss to Argentina means the New Zealand side have lost back-to-back tests for the first time in nine years.
It was also the Pumas' first win over the All Blacks at their 30th attempt.
Laurie Mains told Clay Wilson the All Blacks had work to do, but stressed Argentina deserve immense credit.
