The problem with judging vendors on price alone
Most procurement teams still shortlist vendors around one number: the quote. That number is easy to compare, easy to defend to a boss, and easy to get wrong. A low bid tells you what a vendor is willing to charge today. It tells you almost nothing about whether they will show up on time in year three of a contract, or how they behave when a delivery slips.
Procurement managers who have run large capital programs learn to look past the quote sheet. Omar Messado, a procurement professional and manager who has spent two decades in transportation procurement, including rolling stock and infrastructure contracts, has spent much of his career sitting across the table from vendors during exactly this kind of evaluation. His view is that price is one input among several, not the deciding one.
The five factors that actually predict performance
Depending on the nature of the procurement, Messado frames vendor evaluation around what he calls the 5 P’s: price, product, process, people, and place. Each firm, public or private he has worked for carries some form of evaluation process. Price is just the entry point.
Product means the vendor’s offering actually fits the specification, not a close substitute they are trying to move. Process is how the vendor manages its own internal work: quality control, documentation, change management. People are whether the vendor has qualified staff assigned to your account, and whether those staff stay assigned for the life of the contract. Place covers logistics: can the vendor deliver where and when you need it, given their location and supply chain.
“A vendor can win on price and still cost you more over the life of a contract,” Messado says. “If their process breaks down under pressure, or the people you negotiated with disappear after signing, you inherit that risk.”
Reading the process, not just the pitch
One practical test Messado points to is asking a vendor to walk through how they handled a past delivery problem, not whether they have ever had one. Every vendor has had one. The ones worth keeping can describe what broke, who caught it, and what changed afterward. Vendors who insist nothing has ever gone wrong are either new to scale or not being straight with you.
Procurement Managers can build this into a scorecard before any bid comes in:
- Ask for a specific example of a missed deadline and the resolution.
- Ask who the actual point of contact will be after the contract is signed, by name.
- Ask how they handle a scope change mid-contract, and get it in writing.
- Check whether their quality documentation is something they generate as they go, or something they assemble after you ask.
That last point matters more than it sounds. A vendor whose documentation is real-time is a vendor whose internal process is built for accountability. A vendor who has to reconstruct records when asked is telling you something about how they will handle a dispute later.
What good vendor performance looks like over time
Good vendors are not the ones who never have a problem. They are the ones whose problems get smaller and rarer as the relationship matures, because they learn your specification and your operating rhythm. A vendor evaluation done once at contract signing is a snapshot. It needs a second look built into the contract itself.
Messado’s approach is to score vendor performance against the same standards used to award the contract, on a recurring schedule, not just at renewal. That keeps the evaluation honest and gives underperforming vendors a documented chance to fix the problem before it becomes a reason to terminate.
Signs a vendor relationship is drifting
A few patterns tend to show up before a vendor relationship goes bad outright:
- Invoices start arriving with line items that were not in the original scope.
- The key personnel on the account change without notice.
- Delivery dates slip and the vendor’s explanation changes each time.
- Requests for documentation take longer to fulfill than they used to.
None of these alone is fatal. Together, they are worth a direct conversation, and a review of whether the contract terms still protect the procurement manager.
Negotiating terms that hold up under stress
A contract is only as good as what happens when something goes wrong, not what happens when everything goes right. Messado’s experience negotiating commercial terms on capital procurements points to a specific habit: build in the consequences of underperformance at the negotiation stage, not after a failure has already happened.
That means specifying what happens if a delivery date is missed, what remedies are available short of terminating the whole contract, and who absorbs the cost of a scope change caused by the vendor’s own error. Vendors who resist writing these terms down are often the ones least likely to honor them informally.
For procurement managers evaluating a new vendor relationship, the practical takeaway is simple: score the same five factors every time, ask for evidence instead of assurances, and put the consequences of failure into the contract before you need them. The price on the quote sheet is the easiest number to compare. It is also the least reliable one.
