Each year we hire 3 researchers (at least one local and one foreigner who live in {country}), a native English-speaking in-country writer, and an editor, to bring you insights from multiple perspectives.
So I guess he edits the answers from the researchers (who don't seem to be co-authors, since there's only two authors on the books).
Comments
From the books' description at amazon.com [1]:
So I guess he edits the answers from the researchers (who don't seem to be co-authors, since there's only two authors on the books).
[1] http://www.amazon.com/dp/B00HMJ72JO