Conversion

The assumption that a marketing problem is located inside marketing is usually the wrong starting point

The problem is not always inside the function doing the looking. The most consistently under-examined part of any revenue system is the boundary between marketing and sales.

By Rey Belen March 2026 6 min read Conversion

The natural tendency when performance is flat is to look inside the function for the explanation. Marketing looks at its own campaigns, its own targeting, its own conversion rates. Sales looks at its own pipeline, its own follow-up, its own close rates. The explanation that emerges is usually one that locates the problem within the function that’s doing the looking — because that’s where the data is, and because acknowledging that the problem might be somewhere else requires crossing a boundary that most organizations make difficult to cross.

This is one of the most consistent patterns I have encountered across twenty years of working in and alongside marketing functions. The problem is not always where it appears to be. And the cost of misdiagnosing it — of investing in fixing the thing you can see when the actual problem is somewhere else — is significant.

Why the boundary between marketing and sales is where the problem usually lives

The handoff between marketing and sales is the most consistently under-examined part of the revenue system. Marketing generates leads and passes them to sales. Sales receives them and works them toward a close. The two functions have different data, different metrics, different definitions of what a “good” lead looks like, and different accountability structures. When the results aren’t coming in, each function’s explanation of what’s going wrong tends to implicate the other.

Sales rejects the leads marketing sends. Marketing describes this as sales being too selective. Sales describes it as lead quality being too low. In most cases, both descriptions are partially accurate — and neither one is the diagnosis. The diagnosis requires looking at what is actually happening at the handoff: what leads are being sent, what qualification criteria are being applied, what the first interaction between the lead and the sales team looks like, and how fast that first interaction is happening.

“A wrong diagnosis is not just unhelpful. It is expensive. Every intervention built on the wrong diagnosis is investment in the wrong direction.”

The four places the problem actually tends to live

Lead routing. The lead arrives, but doesn’t reach the right person quickly enough, or reaches a person who isn’t positioned to handle it well. Routing problems are often invisible because the lead appears in the CRM and the system records it as handled. What doesn’t get recorded is whether the handling was appropriate — whether the right person responded, whether the response was fast enough, whether the context was right for the conversation.

Sales readiness. The lead is real. The person is genuinely interested. But the sales team doesn’t have what it needs to have a productive conversation — the right product knowledge, the right conversation framework, the right understanding of what the lead is actually looking for. Sales readiness problems often look like lead quality problems from the outside: the conversations don’t go anywhere, so the inference is that the people arriving weren’t serious. But serious people can be lost through conversations that don’t meet them where they are.

Message-product misalignment. The marketing said one thing. The product is something slightly different. The lead arrived with expectations that the product doesn’t meet — not because the product is wrong, but because the marketing overclaimed or misdescribed. The lead isn’t bad. The lead was created by a marketing system that produced a mismatch between what was promised and what was delivered.

Speed of response. This is the most consistently underestimated factor in conversion performance. The window between when a lead makes an inquiry and when they are most receptive to a conversation is narrow — measured in hours, not days. Organizations that respond to leads in two or three days are having conversations with people who have already moved on. The lead volume looks the same. The conversion rate is significantly lower.

A simple diagnostic test

Ask the sales team to describe the profile of a lead they can close — in as specific terms as possible. Then look at who the marketing is actually sending. If the descriptions don’t overlap significantly, the problem is not lead quality in isolation — it’s a misalignment between what marketing is optimizing for and what sales can work with. That misalignment is fixable, but only if it’s named.

What looking across the boundary requires

Looking across the boundary between marketing and sales requires something that most organizations’ structures make difficult: a shared view of the revenue path. Marketing has data on what happens before the handoff. Sales has data on what happens after. Neither has the full picture. And in organizations where the two functions report into different leaders with different priorities and different metrics, the shared view rarely gets built.

The practical starting point is usually a joint review — marketing and sales in the same room, looking at the same data, tracing specific leads through the path from first contact to close or loss. Not to assign blame, but to understand where the path breaks most often and why. This kind of review produces diagnoses that neither function could have reached alone, because the problem almost always crosses the boundary between them.

What tends to come out of it: the problem is almost never where anyone started looking. It is in the handoff, the routing, the timing, the message-product mismatch, or the conversation framework. All of these are fixable. None of them are visible to a function that is only looking at itself.


The discipline of looking across the boundary rather than within the function is harder than it sounds. It requires a degree of organizational honesty that many functions aren’t set up to practice, and a willingness to find the problem in a place that neither function owns clearly. But it is consistently where the problem actually is — and finding it there, rather than in the comfortable location inside the function, is what makes the fix durable.


The most common version of this I encounter is a marketing leader who already knows the problem is at the boundary, but hasn’t found a way to name it in terms the organization will hear without reading it as deflection. If that’s the situation — if you know where the problem is but not how to make it visible — it’s worth a conversation. Reply: ask@reybelen.com

Digital marketing executive, consultant, and advisor based in the Philippines. Twenty years across organizations, consulting, and entrepreneurship. The work is concentrated in customer acquisition, marketing operations, and the gap between marketing activity and commercial results.

More on the approach →
If this is relevant to your situation

A first conversation — thirty to forty-five minutes — about what's happening and whether there's a fit.

Start a Conversation →

The Long Game — the thinking before it's finished. Patterns noticed, decisions made under incomplete information, the diagnostic lens applied closer to home.