We found this article online and it caught our attention. Lean WordPress is an interesting concept to be sure.
Lean WordPress: A guide to optimizing your CMS
“A fast site is more sustainable and typically more efficient with happier users who can find what they need quickly and easily. Just because a site isn’t fast doesn’t mean, however, that it is easy to maintain. How do you balance the need for speed with the convenience of easy maintenance? In this post we’ll talk about how you can optimize WordPress, an open source content management system (CMS), to meet both needs.”