Provides a basic understanding of the system and what is working, what has changed, what will not change, how new directions happen, how long things take, and all the other practical issues that concern people. Guidance on effective ways to get information and take action. Provides a basic understanding of the system and what is working, what has changed, what will not change, how new directions happen, how long things take, and all the other practical issues that concern people. Guidance on effective ways to get information and take action.