There is absolutely no one-size fits all business model, and obviously what works for Apple will probably work for a small business because everyone is in close communication anyway about office gossip, so they're probably in close communication on-task as well. What;s remarkable is that Apple is succeeding with such a wild business model for such a large company, so I see the point of recommending it to IT programs, but I (and I assume most of the readers) are part of a small team at a small company.