Governance and management: where do you draw the line?

Is there a clear-cut division between the responsibilities of governance and management? Or, will the role of both parties vary depending on the issue and the circumstances? In this article, the authors suggest replacing a "turf model" of corporate leadership with a "continuum model"--that is, viewing governance and management as related functions, and allowing the issue and circumstances at hand to help determine the most appropriate roles and responsibilities for both parties.