Introduction
Sigma has an extensive network of system leaders who are able to support and advise schools, contributing to the development of other leaders and raising standards for students. Our System leaders include National Leaders of Education (NLE), National Leaders of Governance (NLG), Local Leaders of Education (LLE), Specialist Leaders of Education (SLE) and Local Specialist Teachers (LST).
All System leaders have gone through a strict assessment process to ensure that they meet the eligibility criteria and that they have a proven track record of successful working with other school professionals.