The first interview with Kristina Halvorson, author of Content Strategy for the Web, and president of Brain Traffic, points out the differences between project based content strategy work, and enterprise content strategy. Large companies tend to have many departments that all write and manage their own content and communication channels, but once you move all of these disparate groups onto a single website it becomes even more important to have a cohesive content strategy.
From http://nform.ca/blog/2009/10/content-strategy-at-canux-with