The first step, Author says, is to Discover which external pressures for change are the most necessary to address. The key here is to think fewer—step away from the buffet of possibilities and pinpoint the highest-impact options. Then you need to Decide how many change efforts your organization can handle. Here the mindset is to think scarcer—you have only so many people and so many resources, so how do you best use them? Once you've figured that out, it's time to Do—and here you want to think faster. Streamline processes and engage in rapid prototyping so you can learn quickly and cost-effectively. The last step is to Discern what worked and what didn't, so think smarter—develop metrics, identify trends, and make sure learnings are disseminated throughout the organization. For each stage of the process, Author offers detailed advice, practical tools, and real-world examples.