# Team Composition
Team composition refers to the specific mix of [[concepts/skills|skills]], personalities, roles, and identities within a group that influences [[concepts/team-dynamics]] and overall Performance. Optimal composition balances functional [[concepts/expertise|expertise]] with social compatibility to minimize [[concepts/conflict|conflict]] and maximize [[concepts/cohesion|cohesion]].
## Key Frameworks
### Hackman Model
J. [[concepts/feynman|Richard]] [[entities/hackman|Hackman]]'s model identifies five diagnostic conditions for [[concepts/team-effectiveness|team effectiveness]]. While not strictly a "composition" model, it highlights how structural factors interact with member capabilities.
- **Properly Constituted Team**: The group must have the right number of people and necessary expertise.
- **Compelling Direction**: Clear, challenging, and consequential goals.
- **Enabling Structure**: Supportive norms, rules, and procedures.
- **Supportive Context**: Resources, reward systems, and information systems that facilitate work.
- **Expert Coaching**: Access to timely help and [[concepts/feedback|feedback]].
See: [[lab-notes/2026-05-26-Hackman-model-of-team-effectiveness-explained-Five-facto| Five factors for great teamwork — BiteSize Learning]]
## Composition Factors
1. **[[concepts/skill|Skill]] Diversity**: Combining technical, [[concepts/problem-solving|problem-solving]], and interpersonal skills prevents groupthink and blind spots.
2. **Personality Balance**: Integrating diverse personality types (e.g., via Big Five Personality Traits) ensures both [[concepts/ambition|drive]] and stability.
3. **Role Clarity**: Explicit role definition reduces overlap and conflict, enhancing [[concepts/group-cohesion|Team Cohesion]].
4. **Cognitive Diversity**: Varied perspectives improve [[concepts/decision-making|decision-making]] quality in complex environments.
## Implications
- Poor composition leads to Social Loafing and reduced [[concepts/motivation]].
- Dynamic teams require periodic reassessment of composition as project phases change.