When the sourcing team at a large-scale aerospace and defense contract manufacturer looked at its open-order workload, the math was no longer working. Follow-up on purchase orders and supplier commitment dates had become reactive and manual, living in email threads and spreadsheets, and the volume had outgrown the team. Missed commitments were turning into production delays. The default fix was obvious: post a req and hire another buyer. Instead, procurement leadership wrote a different business case, and it's one of the clearest arguments we've seen for what a system of action is for.
About the manufacturer
This is manufacturing at serious scale: mission-critical work for aerospace, defense, and space programs, produced across multiple US sites, with a supply base of more than a thousand vendors and a purchase order volume in the five figures annually. At that scale, procurement isn't a back office, it's the system that keeps production lines fed, and every missed supplier commitment lands somewhere expensive.
The decision: one more buyer, or a fixing root capacity issues
The team framed the decision honestly. A new hire would cost well into six figures a year, fully loaded, recurring, and would buy linear capacity: one person, one workload, still working the same emails and spreadsheets, with a ramp-up period and knowledge that walks out the door if they do. It would solve follow-up and nothing else.
Deploying Sustainment framed the same spend differently. Automated PO acknowledgment and commitment-date follow-up would remove the chase itself rather than staffing it. A centralized supplier record across sites would replace tribal knowledge. And the platform would deliver value the hire never could: one-click RFQs to every qualified supplier at once, AI intake that flags slipping dates and scope so buyers work exceptions instead of the whole order book, certification and NDA tracking with expiration alerts, supplier scorecards, and an auditable system of record aligned with defense-grade requirements.
One detail mattered enough that the team wrote it down: none of it required suppliers to change how they work. Quotes and acknowledgments are captured from ordinary email, without forcing a portal on a thousand-vendor supply base.
The math that closed it
The analysis was deliberately conservative. Across more than 12,000 purchase orders a year, the team modeled Sustainment saving just 15 minutes of human touches over each PO's full lifecycle, from RFQ through receipt. That alone recovers over 3,000 hours annually, roughly a buyer and a half of capacity, with a labor value that exceeds the platform's ongoing cost by itself. Every other benefit, faster sourcing, fewer expedites, audit readiness, was counted as upside at zero dollars.
In their own words, the labor-savings case alone justified the platform. The new hire would have been one buyer; the platform recovered one and a half.
"Capacity scales without adding people, and Sustainment's platform delivers value across sourcing, supplier risk, and audit readiness that a single hire cannot." - From the team's internal business case selling Sustainment
What happens next
The manufacturer is currently implementing Sustainment across its operations with success measured the way their own proposal defined it: on-time acknowledgment rates, average days late on supplier commitments, and buyer hours reclaimed. Buyers shift from chasing acknowledgments to working exceptions, with the recovered hours redirected to sourcing and cost-down work.
The takeaway for manufacturers
Most procurement teams facing a capacity crisis reach for a requisition. This case shows the alternative: when the problem is the chase, a new hire staffs the chase and buys linear capacity, while removing the chase buys capacity that scales with the order book. That's the difference between a tool and a system of action.
Want to run this math on your own PO volume? Schedule a discovery call or email hello@sustainment.com.