How to Build High-Performance Teams — The GLI Playbook

Every leader wants a high-performance team. Very few know how to build one deliberately. Most managers inherit their teams, observe what is working and not working, and make incremental adjustments — hoping the right combination of people and circumstances will eventually produce exceptional results.

That is not how great teams are built. The world highest-performing teams are deliberately engineered. They are the product of intentional design, skilled leadership, and systematic development over time. This is GLI playbook, distilled from our work with hundreds of teams across Africa.

What Makes a Team High-Performing?

Google Project Aristotle — the largest study of team effectiveness ever conducted — found that the single biggest predictor of team performance was not talent, experience, or tools. It was psychological safety: the shared belief that the team is a safe place for interpersonal risk-taking. High-performing teams combine five characteristics: psychological safety, dependability, structure and clarity, meaning, and impact.

Stage 1: Foundations — Setting the Team Up to Win

• Clarity of Purpose — Every team member must be able to articulate in one sentence why the team exists and what success looks like. If they cannot, you do not have a team — you have a group of individuals.
• Right People, Right Roles — Assess team members against both technical capability and the behavioural competencies required for the role. Address mismatches early.
• Norms and Agreements — Establish explicit agreements about how the team will communicate, make decisions, handle conflict, and hold each other accountable.
• Tools and Resources — Ensure the team has the systems, information, and resources to do the job. No amount of team development compensates for inadequate resources.

Stage 2: Alignment — Everyone Pointing in the Same Direction

Alignment is the bridge between purpose and performance. Many teams understand the organisation strategy in theory but cannot connect it to their specific team objectives and individual work. Cascade organisational goals to team-level OKRs, ensure every individual can articulate how their work contributes to team and organisational goals, and create transparent performance dashboards that the whole team can see and discuss.

Stage 3: Performance Culture — Building the Habits of Excellence

• Weekly team check-ins — 30-60 minutes focused on progress, blockers, and priorities. A problem-solving conversation, not a status report.
• Monthly performance reviews — Structured 1:1 conversations focused on results, development, and engagement.
• Quarterly retrospectives — What worked? What did not? What do we change? Evidence-based team learning.
• Radical candour as a norm — Creating a culture where honest, caring feedback flows upward, downward, and across the team.

Common Team Dysfunctions and How to Fix Them

Patrick Lencioni model identifies five dysfunctions that derail teams: absence of trust, fear of conflict, lack of commitment, avoidance of accountability, and inattention to results. Each has a specific remedy:

• Absence of Trust — Vulnerability-based exercises, personal history sharing, team profiling (MBTI, DISC)
• Fear of Conflict — Structured debate formats, designated devil advocate roles, conflict resolution training
• Lack of Commitment — Clearer decision-making processes, explicit commitment protocols, written action items
• Avoidance of Accountability — Public goal setting, peer accountability pairs, team scorecards
• Inattention to Results — Team-based incentives, visible performance metrics, results-focused leadership modelling