Should I write a book?

If I were to write a book, I think it would deal with the subject of post-modern leaders in modern churches. It seems to me that if a church were the other way around (post modern church with a modern leader), life would be much easier for everyone. But being a post-modern leader in a church that is overwhelmingly modern is a very difficult place to be. I actually have a title for it in my mind, but I don't dare put that in print. ;-)