Proposed board instrument
Portable Leadership Evidence Index
A six-domain assessment that prevents years served from dominating judgment. The index structures evidence; it does not replace it.

Scoring anchors
Use a 0-to-4 scale
- 0 Absent
- 1 Claimed, weak evidence
- 2 Partial or single-context evidence
- 3 Strong evidence, limited replication or durability
- 4 Strong, replicated, independently verifiable, durable
PLEI = 100 × Σ[wj × (sj / 4)]
Interactive decision-support tool
Build a PLEI evidence profile
Adjust each domain from 0 to 4. The score follows the report weighting.
0.0of 100
Evidence profile
Replicated outcomes
Contextual range
Learning and adaptation
Trust and culture rebuilding
Strategic renewal
Durable legacy and succession
Not yet scoredEvidence rules
What belongs behind the score
Pre-intervention baselines and 24 to 36 months of trend
Enterprise, department, and team attribution separated
Independent evidence, audits, surveys, governance reviews, successor testimony
Adverse outcomes and abandoned strategies disclosed
Persistence after departure or delegated attention