Be wary of a proposal that promises revenue without inspecting the funnel, lists channels before naming a buyer, hides who will execute, omits decision authority, treats every metric as marketing-owned, has no review point or leaves the exit handoff unclear. Ask the provider to revise those gaps in writing.
Check how the diagnosis was made
The first red flag is certainty without evidence: “we will double leads” before anyone has seen customer, conversion or sales data. The second is a preselected channel package regardless of buyer behavior. Ask what would make the provider change their mind. A good proposal can state hypotheses, but it should not disguise them as findings.
Find the hidden work
The third red flag is no named producer for pages, creative, data work or campaigns. The fourth is a CMO title with no authority over priorities, budget or agency direction. The fifth is a success measure that depends entirely on sales or product without a shared plan. Use the proposal scorecard to compare what each bidder actually controls.
Make revision and exit possible
The sixth red flag is no scheduled review of assumptions or scope. The seventh is no handoff of accounts, assets, definitions and decisions at exit. Ask for a 30- or 60-day review and a simple transition list. This is not a demand for guaranteed results; it is a way to keep the engagement accountable when the evidence changes.
Test one real scenario
Tell the candidate a recent suitable deal stalled after a demo while paid lead volume increased. Ask what they would inspect before recommending more spend, who would do that work and what evidence would change the plan. The quality of the reasoning matters more than how many channels appear in the deck.
Put a proposal through three tests
First, ask the provider to annotate every proposed outcome with the evidence reviewed and the assumption still untested. A promise of more pipeline should identify the current pipeline definition, buyer segment and normal sales-cycle delay. Second, ask for a responsibility map showing who directs, builds, approves and measures the first three pieces of work. If key rows say “client team” without a named person or budget, the proposal contains a dependency, not a deliverable.
Third, ask for a failure response. If the first message test attracts the wrong buyer, what would the provider inspect, stop and change? A useful answer describes evidence and choices. A weak one promises more volume or adds channels without diagnosing the failure. Have the candidate revise the scope after these questions. The way they handle uncertainty and constraints can be more revealing than a polished presentation. If the revised proposal still leaves ownership or exit unclear, compare it with a narrower project or another provider.
Frequently asked questions
Is a revenue target itself a red flag?
No. A target can focus the work. The red flag is a guarantee or attribution claim made without understanding sales, product, budget and the buying cycle.
Should a proposal list every campaign in advance?
It should define the decision process and initial priorities. A rigid list of campaigns before diagnosis can lock the company into untested assumptions.
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