The document discusses the escalating complexity in supply chains and its detrimental effects on performance, highlighting various factors such as input cost volatility, evolving regulations, and higher customer expectations. It emphasizes that increased complexity leads to higher costs, lower performance, and challenges in sustaining growth, urging organizations to address and simplify complexity for operational efficiency. Strategies for tackling complexity include diagnosing its sources, attacking unnecessary drivers, and sustaining improved operations through streamlined processes and organizational changes.