Lencioni opens by introducing the book's central framework, delivered through a business fable narrative: the ideal team player possesses three specific virtues — humble, hungry, and smart — and genuinely effective teamwork requires all three present together, not any one or two alone.

Core framework he establishes:

• Humble refers to genuine lack of excessive ego, willingness to share credit, and focus on team success over individual recognition
• Hungry refers to genuine self-motivation, strong work ethic, and consistent drive to do more and contribute, rather than needing to be constantly pushed
• Smart, in Lencioni's specific usage, doesn't refer to intellectual intelligence but to interpersonal or emotional intelligence — genuine common sense about how to interact effectively with others on a team

This three-virtue framework, illustrated through the book's narrative fable format, becomes the central diagnostic and hiring tool developed throughout the rest of the book.