What is God up to and how can I get in on it?

I've spent more than a little while in thought and prayer about what God might be up to in twenty-first century America and how the congregation I currently lead and I can get in on that action. It is increasingly clear to me that the biggest challenge for the institutional church today is learning how to build on and celebrate what has gone before without succumbing to either grief that much of the last vestiges of Christendom are passing away or the temptation to become a preservation society, frantically scrambling to protect what we already have against the onslaught of post-modernity.

Archbishop Rowan Williams has talked about the concept of the "mixed economy" church where the old and the new not only coexist, but actually support one another. One phrase in (not from him) in particular caught my eye:

Very diverse expressions of church would exist alongside each other in mutual fellowship. Old and new would be a blessing to one another.

Old and new would be a blessing to one another. So counter-cultural a notion, that both the old and the new would be a blessing to each other rather than a burden. As we move into what many have talked about as a new reformation, a new way of being and doing church, perhaps such a concept would help with this transition. Still thinking....