Start with a bang? Is this an example of the cobblers children (being the worst shod)? This project has been on the go for almost all this year and has missed its original deadlines. This is not unusual when dealing with volunteers who have another life they need to maintain to pay the bills. It's an interesting topic - how to work with volunteers. You don't have the same authority or power relationship - you can't discipline them (or they'll pick up their ball and go home). Or can you? How can you work effectively on a project staffed by volunteers?
The Lessons Learned report should be interesting.