Key points
- But once the proposals are open and one vendor's console is visibly slicker while its cost is 15 percent higher, the pull is to nudge the console weight up and the cost weight down, just enough.
- A response that looks strong relative to two weak competitors can still sit at the 40th percentile of what the market delivers.
Why deferred criteria always bend
A scoring model is a set of weights. Weights are opinions about what matters. The instant those opinions are formed while the prices and features are visible, they are contaminated, because the human brain is very good at finding reasons for a preference it already holds. This is not a character flaw in your team. It is the default behaviour of any evaluation where the standard is set after the evidence.
Consider a simple example. Say a committee is choosing between two data platforms. Before quotes arrive, most people would agree that reliability and total cost matter more than, for instance, the polish of the admin console. But once the proposals are open and one vendor's console is visibly slicker while its cost is 15 percent higher, the pull is to nudge the console weight up and the cost weight down, just enough. Each nudge feels justified in isolation. Together they flip the ranking. The score now says what the room wanted it to say.
"A score set after the evidence is not an evaluation. It is a rationalisation with a total at the bottom."
PART TWO
Why the problem survives every process you put around it
Most organisations already have a procurement policy that says criteria should be agreed up front. The problem persists anyway, for three structural reasons.
First, timing. Intake usually arrives as a request to buy a named thing, not a problem to solve, so the criteria conversation feels premature. We wrote about that pattern in the intake ticket that already names the vendor. When the request is a product name, nobody thinks to argue about weights until the RFP responses force the question. By then it is too late to be neutral.
Second, effort. Building a genuinely weighted, defensible scoring model from scratch is real work, and it is work with no visible output until much later. Under deadline, teams skip it and promise to build the grid when the proposals arrive. That promise is where objectivity dies. It is the same failure mode as setting the budget before anyone checked the market price: the decision that should anchor everything gets made last, under pressure, with the wrong information.
Third, and most quietly, deferred criteria are useful to whoever already knows what they want. A blank grid is a gift to the strongest opinion in the room. If your criteria are fixed and public before the quotes land, that person has to argue about weights honestly, in the open, before they know which vendor a given weight favours. That is exactly the argument they would rather avoid, which is why the grid stays blank.
app.isvcosell.com/benchmarks
The benchmark library supplies the standard criteria and weights before any proposal is opened.
THE SAME JOB, TWICE
TODAY, BY HAND
Wait for the three proposals to arrive, then open a blank spreadsheet to build a scoring grid
Argue the weights in a room where everyone can already see the prices and features
Score each vendor by hand, adjusting weights whenever the ranking looks wrong to someone senior
Draft a justification memo that explains the final total after the decision is effectively made
Roughly 14 hours, spread across two weeks and three meetings
WITH ISVCOSELL
At intake, pull the standard weighted criteria for the category from the benchmark library
Confirm or adjust the weights with the committee before any quote is visible, and lock them
Load proposals against the fixed grid so each is scored on the same standard
Review the ranked output with percentile context, prices revealed only after scoring is set
About 40 minutes of your attention
What changes: 14 hours of grid-building and defending becomes about 40 minutes of confirming a standard. Across an evaluation team that runs, for example, two sourcing events a month, that is roughly 28 hours reclaimed monthly, and more importantly the score now measures the vendors instead of the room.
PART THREE
The platform motion: fix the standard at intake
ISVCOSELL treats the scoring model as an intake artifact, not an end-of-process one. When a category is opened, she proposes a weighted criteria set drawn from the benchmark library rather than a blank sheet. Those weights are not invented for your event. They reflect what actually differentiates outcomes for that category across a wide base of transactions, so the starting point is a market standard, not one person's preference.
The committee still owns the weights. The difference is when they own them. You confirm and adjust the model before a single proposal is opened, and the model is locked once quotes are in flight. Prices are held back from the scoring view until the weighted evaluation on non-price criteria is complete. That sequence, standard first, evidence second, is the entire mechanism. It costs you almost nothing and it removes the room in which scoring bends.
Because the criteria are benchmarkable, each vendor's answer is scored not just against the others in your shortlist but against the wider distribution. A response that looks strong relative to two weak competitors can still sit at the 40th percentile of what the market delivers. That context is what stops a narrow field from flattering a mediocre winner. If your requirements themselves are the problem, that is a different failure worth reading about in the requirements document that collapses your shortlist to one.
app.isvcosell.com/benchmarks/data-platform
Each criterion carries percentile bars, so a proposal is scored against the market, not just the shortlist.
"Lock the weights before the prices, and the strongest opinion in the room has to make its case in the open."
PART FOUR
What changes when the standard comes first
1 The weights argument happens blind. You debate what matters before you know which vendor each weight helps. That is the only condition under which the debate is honest, and it is the whole point.
2 Prices are revealed last, not first. Non-price scoring is completed against locked criteria before the commercial numbers enter the view, so cost cannot silently reshape the other weights.
3 Every score carries market context. Percentile bars mean a winner has to be good in absolute terms, not merely the least weak of three. A narrow field can no longer manufacture a strong result.
4 The justification writes itself. Because the model was fixed and logged at intake, the audit trail already exists. There is no after-the-fact memo reverse-engineering a total, because the total was produced by a standard nobody could see the answers to.
5 The incumbent gets no free pass. When criteria are set from market benchmarks rather than the last contract, you avoid the trap in the spec that already picked the winner. Read more in our note on the requirement written to fit the incumbent.
PART FIVE
What this does not fix
Be honest about the limits. Fixing criteria at intake removes the mechanical way scoring bends. It does not remove human intent. A committee determined to reach a predetermined answer can still weight a criterion aggressively at intake, before the quotes, and defend it. The gain is that they now have to do so in the open, with market benchmarks visible as a counterweight, rather than quietly nudging numbers once the answer is in view. That is a large improvement in accountability, not a guarantee of neutrality.
Nor does a good scoring model tell you whether the requirement was right in the first place. If the underlying need is wrong, a rigorous, well-weighted evaluation will simply select the best answer to the wrong question. Benchmarks discipline the scoring, not the strategy behind it.
And it does not stop a vendor's terms from shifting after you score. Price lists move, and the winning proposal you scored in March may not be the offer on the table in June. That is a separate watch problem, one we cover in catching a price list change the week it happens. What fixing criteria at intake does give you is a clean, defensible, market-anchored score, produced before anyone saw a price, which is the one thing a room with a favourite can never talk its way around.
About the author
Fredrik Filipsson, Cofounder, ISVCOSELL
Fredrik has spent more than twenty years in enterprise software, with time at Oracle, IBM, SAP, and Salesforce before moving to the buy side. He structured and priced the kind of large agreements most buyers only see once or twice in a career, which taught him where the leverage sits and how far a vendor will actually move. He started ISVCOSELL to hand that knowledge to every sourcing team.
More posts by Fredrik Connect on LinkedIn →
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