It's common practise for Olympic organizers to draw on the knowledge and expertise of past Olympic organizers to help with their own. Hence why Salt Lake City went to the Calgary organizers for help, and why the Vancouver organizers went to the Salt Lake City organizers for help. As we all know, technology improves over time so every time there is an Olympics in North America, the organizers would go to the last North American city to host the games for help. The same thing is done in Europe. It would be stupid not to.