Sporting dominance is often founded on innovation and the Ben Smith sabbatical has been hailed as a reason the All Blacks are still better than everyone else.
Writing in the Daily Telegraph (UK), columnist Ben Coles highlights NZ Rugby's player welfare policies as a clear contributor to the national team's winning edge on the field.
Coles claims that, while recent results suggest the gap between the All Blacks and their northern hemisphere rivals may be closing, New Zealand is still well ahead of the field in terms of managing its talent, especially its aging veterans.
Earlier this week, All Black Ben Smith, 31, acknowledged as the game's best fullback, announced he would trigger a clause in his contract to take a break over the back half of 2017. He will be available for the opening two Bledisloe Cup tests against Australia, but then miss the remainder of the Rugby Championship and the end-of-year northern tour.
Smith has already missed much of this current season, including two of three tests against the British & Irish Lions, with suspected concussion that was eventually diagnosed as an inner-ear issue causing vertigo and dizziness.