I'm in a room at Stanford with 91 university faculty on day 1 of a 2 1/2 day program with Steve Blank and Jerry Engel. It's the Lean Launchpad Educators program led by Steve and Jerry and managed by the National Collegiate Inventors and Innovators Alliance.
If you don't know about these new methods for startups to engage in a business model development and customer discovery process, you should. Fundamental is an iterative approach to the development of a business with continual hypothesis testing of all aspects of the business model.
What strikes me listening to Steve teach teachers is how much Steve embodies this spirit of hypothesis testing. Not only is he teaching this process but he's constantly testing the processes and techniques that make up his classes.