You might want to follow this survey as it develops. I especially was fascinated by this (interim) result:
"4. More than 40% of directors report that at least one or a few directors on their board are insufficiently engaged, and have insufficient knowledge and intellect to perform their duties."
The survey is being conducted by Alex Todd, and you can find his post with interim results here: http://corpgov.net/?p=2397&utm_source=twitterfeed&utm_medium=twitter
The question for auditors is how does this affect any audit you do of governance? Are you asking this question?
The question for directors is whether your board self-assessment includes the questions asked in the survey.