What are the key responsibilities of a team leader, coach, and sponsor in building an effective team as discussed in The Team Handbook?

The Team Handbook presents several innovative ideas about team composition and roles. One of the key points is the need for a team leader, coach, and sponsor, each having their own responsibilities to make the team effective. The book provides detailed descriptions for each role. Another innovative idea is the recommended team size. Regardless of the type of team, it's best to have five to seven members in addition to the above roles. This ensures a balance between diversity of ideas and manageable team dynamics.

'The Team Handbook' challenges traditional team building practices by emphasizing the importance of specific roles within a team such as a team leader, coach, and sponsor. It also suggests an optimal team size of five to seven members, which may differ from conventional wisdom. The book provides practical advice and detailed responsibilities for each role, which can be a departure from traditional team building practices that may not define roles as clearly.