Project Collaborate Framework for SharePoint Team Sites - Help

How can existing Team Site Collections use this framework?
Owners of existing site collections can still use the framework, here are some example scenarios:
 * If your collection is in good shape you might still want to check out the build phase to see what collection configuration settings we recommend to allow easy and efficient control and management of your collection - e.g. Site Collection Configuration
 * If your collection is in bad shape and you are considering starting from scratch again, obviously start with Phase 1 of the framework.