I spent the last 18 months researching and writing a book on how organizations and leaders can do extraordinary things, even if they operate in pretty ordinary fields. You don’t have to be a programmer in Silicon Valley or a gene splicer in biotech to unleash exciting innovations and create huge value. Instead, you can rethink what it means to be in the retail-banking business, or the industrial-distribution business, or the office-cleaning business. Yet little did I know that some of the most extraordinary innovations I’ve seen would take place in the pizza business.