Jesse James Garrett — American Businessman

Jesse James Garrett is an information architect based in San Francisco, California and co-founder of Adaptive Path strategy and design consulting firm. His diagram titled The Elements of User Experience launched his popularity in the web design community in early 2000, which was later published as a book a couple years later. In a 2005 paper, Garrett coined the term Ajax to describe the asynchronous technology behind emerging services like Google Maps and Google Suggest, as well as the resulting user experience which made it possible to browse without interruption by eliminating the reloading of the whole page... (wikipedia)

If you need to take a step back from day-to-day operations and plot out the long-term direction of your user experience strategy, consultants can give you a perspective you can't get on your own.
User-centered design means understanding what your users need, how they think, and how they behave - and incorporating that understanding into every aspect of your process.
My job involves a lot of different skills now - I'm as much entrepreneur and management consultant as anything else these days - but IA is still my favorite part of the work I do.
Building technical systems involves a lot of hard work and specialized knowledge: languages and protocols, coding and debugging, testing and refactoring.
Content is often the reason users come to your site.