New Zealand are drawing on "gold nuggets" of wisdom from coaching guru Wayne Smith as they prepare for Saturday's heavyweight Rugby Championship clash against world champions South Africa at Eden Park. Smith, the former All Blacks assistant coach dubbed "The Professor" for his tactical mind, joined the camp in Auckland this week in a mentoring role — a move attack coach Scott Hansen said was planned well in advance. "Smithy's been with us this week. He's a mentor to the group," Hansen told