Google's organizational structure is characterized by a flat hierarchy and high involvement of engineers and individual contributors in management, which enables innovation and entrepreneurship. The company has various groups and a culture that promotes innovation, with a focus on hiring the right candidates, providing incentives for successful products, and handling failures. To address challenges such as competition and diversification, Google uses tools like internal labs to provide innovators with market visibility and feedback. The company's entrepreneurial innovation model is highly participatory, requiring significant investment and commitment across all areas.