Explain In house versus outsourcing

Imagine that you are the head of the information technology for a fast growing ecommerce startup. You are in charge of development of the company's Web site Consider your options for building the site in-house with existing staff, or outsourcing the entire operation. Decide which strategy you believe is in your company's best interest and create a brief presentation outlining your position. Why choose that approach? And what are the estimated associated costs, compared with the alternative? (You'll need to make some educated guesses here -don't worry about being exact.)