In industries being disrupted by new entrants with distinct business models, incumbents often have an important advantage: entrenched regulatory and legal barriers. These have forced AirBnB, Tesla, and Uber to make costly concessions to their operating practices or to exit certain markets altogether. How can new firms overcome the regulations that protect incumbents? Lobbying for policy reform isn’t much of an answer, because incumbents generally have the benefit of long-term relationships with government agencies built up over many years.