Some of the practitioners who have been rethinking church for decades and living in the experience of it for many years have written books and answers hundreds of questions on the topic.
One long-time practitioner is Frank Viola who (along with George Barna) have answered hundreds of questions about church practice, history, the New Testament, etc.
GO HERE TO VIEW THEIR ANSWERS TO QUESTIONS
Viola also has an additional FAQ page on his blog where he has answered many questions about church.