Wendell Simmons discusses principles for business development, working with people, and lessons learned. He recommends leveraging personal networks and participating in industry events to develop new business. When engaging clients, it is important to understand their needs, establish common goals, and develop buy-in. Working in teams requires clarifying roles, setting goals, agreeing on a work process, and ensuring transparency to minimize conflicts. Interacting with senior leaders involves establishing clear communication rhythms, using roadmaps, providing consistency and metrics to guide decisions. Overall, context, managing expectations, focusing on priorities, and empowering individuals are keys to success.