Looking To Get Lean And Agile? While Lean and Agile protocols are all the buzz, The Opex90 Team was making companies lean and agile long before those processes were full developed and long before those terms were trendy. Our comprehensive approach to complete Operational Excellence includes a full menu of Dartmouth College certified Six Sigma, Lean Six Sigma and Agile live online training courses, which combined with our broader strategic planning initiatives results in a significant catalyst for change across all major KPIs including sales, finance, operations, production, service, supply chain optimization and more.