He practiced brutal self-reflection and took responsibility for his mistakes. He learned from his experience and grew beyond his pain. Now he is rapidly becoming a significant thought leader and expert in the area of change itself. Today, Dave is contributing to business and life at a level far bigger than that of being CEO of one company.
Every one of us has been betrayed or let down in the past. A mentor passes away, a trusted co-worker moves onto another career opportunity, friends go in their separate directions. The only constant in the mathematical equation of life is you. The only thing you can control (and sometimes not even this) is you -- your behavior, your decisions, your actions.