Zoe Mitchell presented on the 8 essential roles within strong teams. She discussed that a team is a group that shares a common goal. High performing teams have clear goals, leverage strengths, and consistently achieve results, while dysfunctional teams have unclear goals and low trust. The 8 essential roles that make up strong teams are: practical, consulting, driving, creative, catalyst, critical judge, supportive, and detailed. Choosing the right team members and leader, understanding personalities, and using tools like assessments can help teams communicate effectively and maximize their performance.