I think Hillary's major flaws are lack of patience, an inability to listen, and an inability to lead by example, instead depending entirely on situational ethics. The result is that the model she created for herself is fast to move, unable to hear or see around itself, and stands entirely on situation, which by nature is dynamic. Any effective stategy employed by her machine this week may be rendered entirely useless or self destructive by next week.
She has no firm principles on which she operates.