video case.: organizational culture creates strategic competitiveness, management homework help

The video case is available on:http://www.cengage.com/management/book_content/hanson_9780170227643/index-3.html?asset=zappos andhttp://www.cengage.com/management/book_content/hanson_9780170227643/index-3-2.html?asset=zappos2

Questions:

1. How is Zappos’ organisational culture creating value?
2. What resources and resulting capabilities and core competencies do you see within the Zappos organisation that gives it strategic competitiveness?
3. Will Zappos’ competitive advantage be sustainable?
4. What value chain activities performed by Zappos help to create value for its customers?