Management is the most noble of professions if it's practiced well.

The best strategy is a balance between having a deliberate one, and a flexible, or emergent strategy.

How can you make sense of the future when you only have data about the past?

Disruptive technology is a theory. It says this will happen and this is why; it's a statement of cause and effect. In our teaching we have so exalted the virtues of data-driven decision making that in many ways we condemn managers only to be able to take action after the data is clear and the game is over. In many ways a good theory is more accurate than data. It allows you to see into the future more clearly.

But actually theory is very practical. Gravity is a theory, for example. It allows you to predict that if you step off a cliff you will fall; you don't have to collect data on that.

If you want to make better theory, you've got to use the best that's available and look through the lens of another discipline to see if you can uncover more anomalies. By looking at the phenomena of failure from the perspective of sales, marketing, finance, general management, and the equity markets, I was able to see things that Rebecca [Henderson] hadn't.

When a technology, regardless of how different and difficult it is, sustains the trajectory of performance improvement, my research asserts that the leaders in the prior generation of technology are likely to end up on top of their industry at the end of the transition.