Score any DSP partner before you commit budget. Weight retail fundamentals, market sizing, audience strategy, incrementality reporting, creative capability, and commercial terms. A premium brand should refuse DSP spend until the agency has sized the market and proven the product page converts, because display traffic multiplies whatever the listing already does.
The short version
- DSP amplifies, it does not fix. Display sends people to a page. If the page converts poorly, DSP scales the waste.
- Demand market math first. A partner who quotes budgets before sizing your addressable market is selling media, not strategy.
- Incrementality is the only honest report. New-to-brand and reach numbers flatter every campaign ever run.
- Premium positioning raises the creative bar. Stock templates in remarketing ads erode exactly the brand equity you are paying to build.
- Structure the fees so restraint is possible. A partner paid on spend cannot recommend spending less.
Build a scorecard before the first call and make every candidate answer to it. Here is the one I would use, with weights, and what a top score requires on each line.
The scorecard
| Criterion | Weight | What a 5 out of 5 looks like |
|---|---|---|
| Retail fundamentals first | 25 | They audit listing conversion, pricing, and reviews before proposing any display budget |
| Market sizing discipline | 20 | They size your addressable market and tie the budget to what is capturable |
| Audience strategy | 15 | A full-funnel plan with reasons, not remarketing-only by default |
| Incrementality reporting | 15 | They commit in writing to measuring lift against holdouts, not just reach |
| Creative capability | 15 | Display assets produced to your brand standard, not platform templates |
| Commercial terms | 10 | Flat fee, no percentage of media, exit without penalty |
Score each candidate 1 to 5 per line, multiply by the weight, and refuse to be talked out of the weighting. Agencies that sell media will push creative and audience talk to the top of the meeting. The first two rows are where premium brands lose real money, so they carry 45 of the 100 points.
Why market math outranks media skill
This weighting comes from how we run product decisions at Flapen. We do not enter a market below $2 million a year in revenue, because under that ceiling there is not enough capturable demand to pay back acquisition costs. The same arithmetic governs display. DSP budgets are justified by the demand pool they can reach, and if nobody has quantified that pool, the budget number in the proposal was reverse-engineered from what you look able to pay.
The validation logic applies too. We prove a product with a small test, about 200 units and $5,000 to $10,000, before scaling anything. Ask your DSP candidate for the equivalent, a bounded pilot with pre-agreed success metrics, before an always-on commitment. A partner who resists a pilot is telling you something about their confidence.
What most agencies will not tell you
DSP is pitched to premium brands more often than performance data justifies, for a simple reason. It raises managed media spend, and most agency fee structures scale with managed spend. The pitch says brand building. The invoice says percentage of media.
The second silence is about readiness. Display traffic converts below search traffic almost everywhere, because the shopper was not looking for you. That makes page conversion the whole game, and it is why the honest sequencing is retail fundamentals, then search, then display. An agency that starts the conversation at DSP is starting at the wrong end of the funnel, and few will say so while the budget is on the table.
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Bring the scorecard to every candidate conversation, including one with Flapen.
