Much has been said about how artificial intelligence (AI) systems can automate some processes to make them more efficient. Far less attention has been paid to AI's greater power: enabling humans and machines to leverage and amplify each other's strengths. I truly believe that humans and machines can become symbiotic partners, working together and pushing one another to higher levels of performance. Moreover, companies can reimagine their business processes to take advantage of collaborative teams of humans working alongside machines. A new book, "Human Machine," by Accenture's chief technology & innovation officer Paul Daugherty and managing director James Wilson, describes this dynamic and diverse space as the "missing middle."