Revolution

I am in the process of reading "Revolution" by George Barna. Barna is examining the state of the church today. He states that millions of believers have moved beyond the established church and chosen to be the Church instead. I believe Barna is correct that believers are leaving the church. I have seen believers locally leaving the church for many of the same reasons that Barna discusses.
Though I believe that Barna is correct, I struggle with some of his conclusions. I have given my life to the local church - 27 years of full time service. For that reason and many others, I struggle with the book. Throughout my years of serving the local church I have seen many leave the church. Barna believes that these "revolutionaries" are strong believers even though they may not attend church. It is my experience that most people, when not associated with the local church, will cease growing spiritually and will eventually "backslide." It is my belief that a believer needs the local church as much as the church needs these "revolutionaries."
I believe that these "revolutionaries" are vital for the church to be the church. The church needs their spirit, their vibrancy. For the church to be everything that God desires, these "revolutionaries" are needed in the church and the church needs them.
I believe their is hope for future of the church or I would not be able to continue to serve the church. We really do need each other - the revolutionaries and the church. We seriously need to co-exist so that God can be glorified. I don't believe that God is honored by division of any kind. The church and the "revolutionaries" need to make the changes necessary for the two to co-exist and thus bring God glory.