The document discusses research on team performance and intelligence. It finds that average individual intelligence is not a strong predictor of group performance, but that social and emotional intelligence factors like equal participation, social sensitivity, and diversity are more important. The document also summarizes Google's Project Aristotle research which found that psychological safety, dependability, structure and meaning were keys to high-performing teams rather than a focus on selecting "superstar" individuals. It provides resources on moving from a "pecking order" model to one that leverages everyone's contributions.