Mark Rosekind has an absolutely rock solid reputation in his field, and we used some of his research in a document we produced in 2008 on adjusting duty cycles and shift patterns on rigs to improve safety.
1) We shouldn't be surprised: looking at the fatigue factors in the Buffalo crash (could it have been any worse?) it was inevitable.
2) Just because someone excels in one narrow discipline doesn't mean they are completely clueless about related disciplines which abut their field.
3) There is a famous quote by past US president William Jefferson Clinton: "Every major error I made in my life, I made when I was tired".
In my view, an HF guy can only help raise the profile of the importance of crew fatigue management and its role in accidents.
Pinkman