The Bridgespan Group shares an article on establishing a good executive director-board relationship.
Free Management Library
The Free Management Library offers suggestions to enhance the working relationship between the board chair and the director. These include setting up formal procedures to help both people discern between an organizational issue and a personal issue, maintaining good communication, and effectively managing conflict.
Minnesota Council of Nonprofits
The Minnesota Council of Nonprofits notes that the relationship between the board and the director is one of the most written about topics in nonprofit literature. This article summarizes some of the thoughtful material that has been written on this subject.