If the tools you employ are not simple enough, but you cannot reduce the quality requirements on your documentation or communication, you need to provide support for your teams. Create the role of a documentation gardener to support team members on their documentation tasks. Allow feedback to flow to the gardener and the information architect to continuously improve the documentation process.

Make work on documentation a first citizen in your project and provide resources for it explicitly. Value the documentation created as much as any other new features for your product.

KISS - Keep It Simple, Stupid