Optimisation is often misunderstood. Too frequently, it’s about keeping people and resources busy – a metric of effort, not impact. But clever optimisation flips this thinking. It prioritises flow efficiency over resource efficiency, recognising that the smooth movement of work through a system delivers far greater value than simply maximising individual utilisation.
Niklas Modig and Pär Åhlström, in This is Lean: Resolving the Efficiency Paradox, articulate this beautifully: resource efficiency – keeping every resource busy – often creates bottlenecks, delays, and complexity. Flow efficiency, on the other hand, focuses on how work progresses through the entire system, ensuring outcomes are achieved predictably and sustainably. This shift can unlock transformative results, allowing teams to deliver faster without sacrificing quality or morale.
Take, for example, the more traditional software delivery approach where testing is done as a separate, sequential step. This resource-efficient approach misleads us into thinking that testers will always be busy, processing as many completed features as possible. But if upstream delays cause a bottleneck, those testers might wait for work, or worse, rush to keep up when features are dumped on them at once. By optimising flow efficiency instead, testing is integrated earlier (“shifting left”), reducing bottlenecks, improving feedback loops, and enhancing quality from the outset.
Mary and Tom Poppendieck, pioneers of Lean Software Development, reinforce this concept. They warn against the dangers of a “utilisation mindset,” where the focus on ‘busyness’ can obscure inefficiencies and hinder overall progress. Instead, they advocate for aligning teams around value streams – end-to-end workflows that deliver meaningful outcomes. This holistic approach encourages collaboration, eliminates waste, and creates systems that scale naturally.
Johanna Rothman’s insights into system thinking also emphasise this point: understanding the entire workflow is critical to improving flow. Rothman observes that organisations focusing solely on resource efficiency may inadvertently increase lead times, as work queues and handoffs accumulate.
Shifting to a flow-based approach often involves small but impactful changes. Breaking work into “thin slices” of value – incremental deliverables that are meaningful and testable – enables teams to learn, adapt, and improve continuously. This approach mirrors the Lean principle of minimising work-in-progress to improve focus and reduce delays.
By prioritising flow efficiency, organisations can achieve faster, more predictable delivery without sacrificing quality. It’s not just about getting work done, it’s about getting the right work done, in the right way, at the right time. As Modig and Åhlström argue, flow efficiency transforms how teams think, work, and deliver.
So, what does clever optimisation look like in practice? It’s creating systems where teams collaborate freely, feedback loops are short, and value flows to the user without obstruction. It’s adopting technologies that enable adaptability and encourage responsiveness. Most importantly, it’s about rethinking the purpose of optimisation: not to keep everyone busy, but to make every effort meaningful.
At T5 Digital, this is exactly what we do. By aligning technology, techniques, and teams, we help organisations streamline their systems, simplify complexity, and truly deliver value faster. If you’re ready to shift from busyness to impact, let’s talk about how we can work together to make every step of your delivery truly count.
