I thought the most interesting part was the discussion about the factors of general (g factor) intelligence (IQ), Big Five Conscientiousness (C), and Creativity. I didn't necessarily agree with his conclusions but I could see his point.

The thing he didn't address was how to increase the Conscientiousness and Creativity of those with high IQs. In some ways, we do almost the opposite with learned underachievement and an emphasis on convergent thinking.