6 November 2026 · 2 min read
The forecast will be wrong. Plan for how wrong.
Why forecast error and bias, not the forecast number itself, should drive safety stock and planning meetings.
Blog
Short essays on planning, inventory and the ideas behind the numbers.
6 November 2026 · 2 min read
Lead time variability: the quiet killer of service levels
A supplier that is reliable on average can still empty your shelves. Why the spread of lead times matters more than the mean.