Did I mention you'd be seeing more from Patrick Lencioni's work on organizational health?
This brief video points out what should be obvious to boards (but may not be, because we don't talk about these topics): boards need to be both smart and healthy. Those of us who pay attention to board development - boards and consultants - tend to have the "smart" component down. We focus on the elements that typically signify board effectiveness. Look at his list under that category - technology, strategy, finance, marketing - for hints.