John Cash

Demand can change in an instant. A flash promotion takes off faster than expected. An influencer post sends a niche SKU into the stratosphere. A heat wave flips seasonal demand on its head. And suddenly, your forecast—carefully crafted weeks ago—feels like yesterday’s weather report. This is where demand signal management earns its keep. Instead of reacting too late or overreacting too early, it helps supply chain teams interpret what’s really happening and respond with confidence. For retailers and consumer brands navigating constant demand volatility, it’s the difference between chasing noise and acting on insight.   The problem: demand forecasts lag reality Traditional forecasting has a fundamental challenge: timing. Forecasts are built on historical patterns and planning cadences that move at a measured pace, but demand levels today won’t wait for the next planning cycle. Modern demand shocks often arrive without warning: a promotional discount goes viral, a competitor runs out of stock, weather drives sudden regional swings, or a trend outpaces merchandising plans. In these moments, planners face a familiar tension. React too slowly, and shelves go empty. React too aggressively, and you’re stuck with excess inventory once the spike fades.   What demand signals are (and what they aren’t)…

Special Guest Blog Post written by Gary Smith, CPIM-F, CSCP-F, CLTD-F, Author of “The Bridge,” Supply Chain Engineer, and Educator   1. Do Supply Chains exist in the public sector? The short answer is “YES!” I spent the first 25 years of my career in the private sector where I worked in warehouse operations, industrial engineering, and consulting, all in the logistics andsupply chain area. I cut my teeth on retail, automotive, chemical, food and beverage, publishing, and manufacturing. During that time, I also completed projects for the public sector in education and for the Department of Defense. In 2005 I was named Director of Supply Chain Operations for the New York City Housing Authority (NYCHA). We operated a 200,000 sq. ft. warehouse that shipped repair material to 335 developments in New York’s five boroughs. In 2013, I was named Vice President of Supply Logistics for New York City Transit, the largest public transportation organization in North America. We operated over 1.5 million sq. ft. of warehouse space covering all of New York City. Several years ago, I was on a national committee for the Association for Supply Chain Management (ASCM). We created this elevator speech to describe Supply Chain…