The Pull System dramatically improves the linearity of production through the month, measured as the cost of jobs finished in the last week of the month divided by the cost of jobs finished in the first week of the month[i]. (see Figure 1-6). This dramatically reduces peak loads throughout the plant as well as overtime cost, late delivery and expedited delivery cost. Most importantly, >98% on time delivery creates happy customers and more sales.
Reference: 1. “Lean Six Sigma in the Age of Artificial Intelligence” pp 43-55, 132-138