See what’s really driving your team’s performance
Our research-based team diagnostic gives HR and business leaders a clear, data‑informed view of how well a leadership or critical team can deliver on its targets, navigate change, and sustain performance over time.
Why use itInstead of relying on opinions or engagement scores alone, our team diagnostic helps you uncover the team dynamics that accelerate growth or quietly slow execution - alignment, trust, decision‑making, collaboration, and learning.
Use it to uncover the underlying causes of your team’s challenges and see clearly what differentiates average teams from truly high‑performing ones.
What the PERILL Team Diagnostic is
PERILL is a team assessment originally commissioned by Facebook (now Meta) to understand what differentiates average teams from truly high‑performing ones.
It looks at your team as a system across six evidence‑based dimensions and produces a clear, visual ‘team health’ report you can act on quickly.
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How clear, compelling, and shared the team’s purpose is, and how energised people feel by it.
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How well the team works with its key stakeholders, systems, and wider organisation.
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The quality of trust, respect, and psychological safety between team members.
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How decisions are made, how communication flows, and how work gets done day to day.
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How the team reflects, adapts, and improves based on experience and feedback.
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How leadership behaviours enable or block the other five areas
How PERILL helps HR and Leaders
It moves the conversation from “we think the team has an issue” to “here is where this team is strong, here is where it is under tension, and here is what that means for execution risk”.
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Use PERILL to spot where misalignment, low trust, or slow decision‑making are likely to delay execution of your strategy or transformation plans.
It helps you identify where hidden conflict, unclear roles, or competing priorities are creating friction in your leadership or critical teams, so you can intervene early—before issues turn into missed targets, failed initiatives, or key people leaving.
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Instead of broad, generic data, PERILL shows you exactly which dynamics are blocking performance in a given team—whether it is decision bottlenecks, lack of ownership, leadership inefficiencies, or poor cross‑functional collaboration.
That lets you focus leadership development and other interventions where they will have real impact, protecting the ROI of your people and culture investments.
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When multiple teams complete PERILL, you gain a comparable view of team health across business units or geographies.
This gives you a shared language for talking about team effectiveness and helps you prioritise where to focus first, where growth is being held back, and where things are working well that you can replicate.
A powerful starting point for honest conversations and targeted interventions that look on performance and people.
Get a sample report
The sample report shows the core insights PERILL provides for a team: a visual overview of strengths and pressure points, key patterns across the six PERILL dimensions, and practical next‑step prompts - while giving you the option to access more detailed underlying data when needed.
Book A Call
Explore how the PERILL Team Diagnostic could support your leadership or critical teams on a 20‑minute introductory call.