ShotSpotter provides gunfire detection sensors to cities across the United States. CEO Ralph Clark is interested in taking the company beyond the business-to-government sales model and into new services. Could his company provide a service to colleges and schools concerned with mass shootings? Could the technology be adapted for indoor applications like shopping malls and movie theaters? Or even citywide deployment through smart cities to detect gunfire during terrorist attacks. Harvard Business School professor Mitch Weiss discusses how moving from one business model to another is difficult, and how successful companies make the transition.