Over at the Acts 29 blog is an interesting blog post. The answer to the question in the blog title is a no. The main idea of the blog post is that a purely Missional church will burn out. These are the best few lines from blog which explains the need:

Missional church is not enough. What we need is captivation with God’s glory, and with a God who is relentless in showing his glory to his people throughout history. This glory is complete. The challenge is to stand in awe, not merely of the missional task, but also of the God of mission. From this place of awe the mission of the church will advance and God’s glory will be completed.

Its a reminder by Jonathan Edwards of 1 Corinthians 10:31. Now go over to their blog and read the post. It’s not that long.