Critical Success Factors In this series, David Allen, Meg Edwards, and Marian Bateman take you through how to keep the system going by examining the Review and Do phases of GTD®. Learn how to review your system, including what to review when and the different horizons of focus, so you can trust the choices you are making about what to do. Also includes an in-depth walk through of the Weekly Review, with Coach Meg Edwards sharing her recommendations on how to productively spend an hour getting clear and current. If you’d like to purchase the complete set of mp3s and binge it all at once, please visit the GTD® Store