It's no surprise New Zealand is pick-pocketed by so many rivals - by the World Cup, five of the top 10 nations will likely be coached by Kiwis.
There will be, if he survives, Robbie Deans at the Wallabies; Warren Gatland at Wales; Joe Schmidt at Ireland and, according to speculation in Edinburgh, Vern Cotter at Scotland. It wasn't that long ago that they worked here. In 2006, all of them, in one guise or another, were in Super Rugby posts.
There is the prospect, too, of Sir Graham Henry continuing his advisory role with the Pumas. Kieran Crowley most likely will still be with Canada, former Counties Manukau coach Milton Haig with Georgia and no doubt a few other Kiwis will be picked up between now and September 2015 in various assistant, consultant and technical roles.
It's not necessarily the direct loss of the coaching capital that hurts; there are emerging coaches in New Zealand ever ready to step up, and specific details, moves, techniques that those leaving take with them become obsolete in no time.
What hurts is the intimate knowledge of the talent base in New Zealand. Those who leave take with them fine details of the playing landscape. They know much about senior professionals, who is on the rise and who might soon emerge.