Management guru Clayton M. Christensen died this week. Sadly, he was only 67 (leukaemia). A professor at Harvard Business School, Christensen was best known for probably two things: His work on disruptive innovation and his teachings on how to live a more fulfilling life. If you've read anything on innovation and disruption, I am sure you've come across the work of Christensen. He had a way of explaining things by reframing them. Here is a short video about the "job" of a McDonald's milkshake. And here is another one where he explains the cycle of disruptive innovations, sustaining innovations, and efficiency innovations. Both videos are worth watching.