Procurement separation is where stranded cost concentrates.

Why procurement is the stranded cost workstream.

Every contract the Newco needs from day one was originally signed by the seller. Software licences, telecom, facilities, professional services, freight, packaging, raw materials. The seller is the contracting party. The seller is on the rebate schedule. The seller's pricing reflects the seller's volume. None of this transfers automatically to the Newco.

The seller often holds the contracts under shared service arrangements with no clean break clause. Even when there is a clean break clause, the assignment process requires the vendor's consent. Some vendors say yes immediately. Some require a new credit application, a new pricing negotiation, or a new agreement entirely. The variance across a typical 800 to 2,000 vendor portfolio is enormous.

Stranded cost concentrates here because every vendor contract has a tail. A software contract signed three years ago by the seller for a five year term cannot simply be terminated. The buyer either pays the early termination fee, runs the contract to expiry, or negotiates an assignment with a renewed term that benefits the vendor. None of these are free.

The implication is that procurement separation runs in parallel with everything else, not as a sequential workstream. The buyer's procurement team starts work in the pre-signing window, builds the vendor inventory by day 30, and runs continuous assignment work through the full TSA period and beyond. Procurement separation is rarely complete at Day One. The goal is to be far enough along that the operating model holds.

The vendor contract inventory is the first deliverable.

A complete vendor contract inventory is the day 30 deliverable for the procurement workstream. Every vendor, every contract, every term, every assignment clause, every renewal date, every annual spend. Most sellers maintain a contract repository at varying levels of completeness. The buyer's procurement team has to validate, fill gaps, and produce a single working file.

The inventory is then segmented. Critical vendors that must be assigned before Day One. Important vendors that need assignment within 90 days. Standard vendors that can run on the seller's contracts under the TSA pass-through with assignment over the following six to nine months. Long tail vendors where the Newco may simply switch providers because the assignment work exceeds the value.

Critical vendor identification is the high stakes work. Manufacturing inputs that cannot be interrupted. Software licences that the Newco depends on operationally. Insurance carriers where the seller's master policy does not extend. Each critical vendor relationship requires a direct conversation with the vendor's account team well before close.

The inventory work uncovers surprises. Vendor concentrations the buyer did not know about. Auto renewal clauses that lock in poor pricing. Most favoured nation clauses that the seller relied on and that do not survive assignment. The inventory often pays for itself just by surfacing the latent risks before they become Day One issues.

Source to pay rebuild on Newco systems.

The source to pay system is the operational backbone of procurement. Purchase requisition, approval workflow, purchase order, receipt, three way match, invoice processing, payment. The seller's S2P system is rarely portable to the Newco. The Newco either stands up its own S2P, adopts a SaaS platform, or runs purchasing through the ERP for a transitional period.

A new S2P implementation runs four to eight months for a mid-market Newco. Vendor master conversion is the largest single piece of the implementation. Approval hierarchies need to be set. Workflow rules need to be configured. Integration to the ERP needs to be built. Each step has its own complexity and its own risk.

Many Newcos run purchasing through the seller's S2P under the TSA for the first six months. This buys time at the cost of TSA fees and the seller's pricing constraints. A 12 month S2P TSA gives the buyer enough room to implement properly without forcing a rushed cutover. A shorter S2P TSA creates pressure that often shows up as configuration shortcuts.

Spend categorisation is the silent work. Every category, every commodity code, every approval threshold has to be set on Newco systems. Sellers often do this work to a standard the Newco does not match. The Newco may need a simpler categorisation. A direct material focused operating model may need different approval thresholds than a services dominated one. Spending the configuration time correctly during stand up pays back across the entire operating period.

Pricing leakage during contract assignment.

Contract assignment is rarely a free transfer. Most vendors view the assignment as a moment to reset the commercial terms. The buyer's smaller volume justifies a higher unit price. The buyer's shorter remaining term justifies a renewal extension. The buyer's new credit profile justifies different payment terms. Each reset is a small leak in the buyer's cost base.

A disciplined assignment process treats each vendor conversation as a renegotiation, not a clerical transfer. The buyer's procurement team prepares an opening position for each major vendor, including a market check on current pricing, an alternative supplier identification, and a clear walk away position. Vendors respond to disciplined buyers and concede to passive ones.

Volume rebates are the largest single source of leakage. The seller's contracts often include rebate tiers based on parent company volume. The Newco rarely reaches those tiers on its own. The result is an effective price increase even when the headline rate does not change. Identifying the rebate impact across the top 50 vendors before assignment lets the buyer reset expectations and pressure test the new pricing.

The buyer's negotiating leverage is at its peak in the first 90 days after close. The Newco is fresh, the operating partner is engaged, and the vendor is paying attention. The same conversation 18 months later carries less urgency on both sides. Assignment work that lands in the first 90 days produces better outcomes than assignment work that drifts into year two.

Cost ranges and the exit ramp.

Procurement TSA fees typically range from $20K to $100K per month for a mid-market carve-out. The variance is driven by S2P system hosting cost, the depth of vendor master maintenance the seller provides, and whether contract management support is bundled. Detailed cost ranges by workstream are in TSA exit cost benchmarks.

The exit ramp clauses for procurement deserve the same scrutiny as IT. Exit on 30 days notice with no penalty for any service the buyer has stood up internally. The buyer rarely turns off procurement services in a single cutover. The exit happens service by service, vendor by vendor. The exit ramp clauses have to support partial exit, not just complete exit.

Hidden cost in procurement TSAs often sits in the pass-through layer. The seller may pass through the cost of legacy vendor management software, contract management tools, and spend analytics platforms that the Newco neither uses nor needs. A line by line audit of pass-through items typically identifies 15 to 25 percent of procurement TSA cost that the buyer can cut by turning off services. Detailed milestone planning is covered in TSA exit milestones, explained.

The Newco procurement function should be in place at full strength by month six. A chief procurement officer or director, two to four category managers, a vendor master and S2P operations team. Without the full team in place, the assignment work stalls and the seller's procurement organisation fills the gap, which is rarely the best long term answer for the Newco.

More on TSA exit strategy.