Operational Excellence Beyond Lean: What Modern Organisations Actually Need
Lean and Six Sigma transformed manufacturing and service operations in the 1990s and 2000s. The core insights — eliminate waste, reduce variation, focus on value from the customer's perspective — remain as valid today as they were then. But the toolkit has aged. Applying it without augmentation means leaving significant value on the table.
What has changed since Lean was codified
Three developments have fundamentally changed what operational excellence can look like in 2026:
- Real-time data. Where Lean practitioners once relied on periodic audits and manual observation, IoT sensors, ERP telemetry, and process mining tools now provide continuous visibility into exactly how work flows — without a stopwatch.
- Intelligent automation. Where automation once required expensive, brittle RPA implementations, modern AI-assisted tools can automate judgement-based tasks as well as rule-based ones.
- Human-centred design. Operational excellence that ignores the employee experience eventually fails through disengagement and workarounds. Journey mapping and co-design are now standard tools for durable process improvement.
A modern operational excellence framework
The organisations achieving the strongest operational results in 2026 combine the discipline of Lean (value-stream mapping, root-cause analysis, continuous improvement culture) with digital process intelligence, selective AI-assisted automation, and a genuine commitment to designing with — not just for — the people doing the work.
The goal of operational excellence has not changed: more value, less waste, better outcomes for customers and employees. The path to that goal has.
Where to start
The highest-return starting point for most organisations is a digital maturity assessment of their core operational processes — not to generate a transformation roadmap, but to identify the two or three specific friction points where targeted intervention would produce the fastest, most measurable impact.