"When someone comes in who doesn't really know how you operate, and they have a look at you, then it's interesting how they see the things that we do.
"Because sometimes the message we think we're trying to give, someone else might see and hear them slightly differently. It's just a different set of eyes. It's good and it's good to just keep prodding us."
Head coach Steve Hansen has gone on learning missions himself, most notably with the United States Marine Corps last year.
Hansen and All Blacks mental skills coach Gilbert Enoka visited various US institutions, including the world famous West Point Military Academy observing leadership strategies ahead of the British and Irish Lions tour.
"We had the opportunity to visit the naval academy and marine corp at West Point in the States," Hansen told the Herald last year. "We went up for a few days and had an incredible learning experience and shared some of our stuff as well. We are very thankful for what the departments we visited us gave us.
"We are fortunate that we have a really strong brand which is able to possibly open doors for us that maybe aren't open for other people. We would be foolish if we didn't take these opportunities."