How do we sustain theCompletion Document: This document lists as many project deliverables and milestones that you feel are important for the new PM to know about. For each milestone or deliverable, list the estimated (current or initial) completion date and then the actual completion date if it has been completed. practice change that we sought to make? When you're gone and onto your next project, what will happen to the one you just closed? What strategies have you put in place to ensure the long-term success and sustainability of your project? When you check back in after a year, what will it look like