Lean and Legacy supply chains for coordinated demand driven production to handle disruptions

The pandemic created a massive disruption and exposed the lack of resilience in supply chains (SCs), bringing resilience to the spotlight. SC practices have become lean to achieve maximum profitability, with very little or no buffer stocks. On the other hand, with disruptions being the new norm in an ever-increasing uncertain and volatile business environment, organizations' sustainability is being severely tested. A comparison of Legacy and Lean SC practices is carried out in this paper. Legacy practices are costly, inefficient and forgotten but valuable in the context. Lean practices are highly profitable and efficient, but they are insufficient for a firm's survival in a disruption. This paper through the basics of control engineering applications and proposes a methodology to achieve an appropriate dynamic mix of Lean and Legacy SC practices through coordinated demand-driven production. The work presented in this paper will enable SC managers and practitioners struggling to find solutions to deal with disruptions and help strengthen SCs, albeit at the cost of sacrificing some profitability and efficiency. Copyright (C) 2022 The Authors.