Third Way Thursday: Missional vs. Attractional

The missional church is, according to Friend of Missional:

The missional church is one where people are exploring and rediscovering what it means to be Jesus’ sent people as their identity and vocation.
The missional church is faith communities willing and ready to be Christ’s people in their own situation and place.
The missional church knows that they must be a cross-cultural missionary (contextual) people and adopt a missionary stance in relation to their community.
The missional church will be engaged with the culture (in the world) without being absorbed by the culture (not of the world). They will become intentionally indigenous.
The missional church understands that God is already present in the culture where it finds itself. Therefore, the missional church doesn’t view its purpose as bringing God into the culture or taking individuals out of the culture to a sacred space.

According to Alan Hircsh the attractional church is:

one whose primary stance towards those it seeks to reach is couched in the expectation of a come-to-us
mentality. And this expectation as it plays out in the US, Europe,
Australia, etc. was basically formed in a time in history where the
church had a central position in the culture and people naturally came
to church to be cared for, to hear the gospel, and to participate in
the community life….nonetheless all expressions of church should be attractive.

Does missional always have to be pitted against attractional and vice versa?  Is there a middle ground between the two, or do they always have to be polarized?

I am admittedly a very missional person, but I want to hear both sides of the story.  In researching for this post it was hard to find anyone stepping up to support an attractional model, as missional is a "buzz word" right now.  In Ed Stetzer’s book Breaking the Missional Code he basically gives examples of churches breaking the code by being primarily attractional because that is what their culture necessitated—they were not post-Christian yet.  The big questions become, does an attractional model work inside a post-Christian context?  Or, does a missional model work inside a Christendom context?