Outsourcing doesn't seem to always be the best idea these days, having come from an I.T background that outsourced skills to businesses I can say companies that outsources skills do not necessarily have the skilled resources therefore turn around time isn't as effective. This is only based on my opinion and others may be of a different opinion. My personal choice will be to hire your own resource unless you are a small to medium business that cannot afford a dedicated resource and can allow for longer down time.
RE: Information Systems Acquisition - Insourcing vs. Outsourcing