After a strong quarter, the next $100,000 is rarely an open question. Many CEOs and marketing leaders already have a default: put more money into whatever worked, and paid search tends to win because its reporting is tidy. A Search Engine Journal column argues that the default answer is often the wrong one.
The better question is not which channel performed best, but which stage of the funnel is holding growth back right now.
Map the full funnel, including after the sale
To demonstrate, the author builds a fictional B2B SaaS company called Fieldline. It has $8 million in ARR, a $24,000 average contract value, and $90,000 in monthly marketing spend: $45,000 for paid search, $20,000 for content and SEO, $10,000 for events, and $15,000 for tools and contractors. The board then adds $100,000 for next quarter, and the marketing VP requests $60,000 for paid search and $40,000 for content.
But a view that goes past closed-won tells a different story. Fieldline wins 20% of opportunities and loses 22% of customers in year one. That churn is worth nearly $1.8 million in annual revenue, most of it lost in the first 90 days. Meanwhile, the marketing dashboard showed traffic up 14% and cost per demo flat, which is why paid search looked like the obvious move.
Price each option against the constraint
The framework estimates what every spending option would change and what that change is worth over a year. For Fieldline, an extra $60,000 of non-brand paid search at an $18 cost per click buys about 3,300 clicks. Pushed through the same funnel, that produces one or two deals and roughly $36,000 in new ARR.
Other options look very different:
- A conversion rate optimization program that lifts demo request rate from 0.9% to 1.1% could add about $1.1 million in new ARR for roughly $15,000 of testing and design work.
- Reducing first-year churn from 22% to 16% saves about $480,000 per year.
- Improving visibility in ChatGPT, Gemini, Perplexity and Google’s AI Mode moves win rate rather than traffic; each point of win rate is worth about $260,000 at Fieldline’s volume.
The opportunity cost is the real headline. Budget sent to the next batch of clicks is budget not spent on a churn fix or a win-rate problem worth far more.
Spend the first $10,000 on evidence
Before committing most of the money, the process puts about 10% into research. For Fieldline, that means 15 interviews with recent customers, 10 interviews with customers who churned in the first 90 days, a review of 30 recorded sales calls, and a sharper “How did you hear about us?” question on the demo form.
The findings narrow the decision from several competing options to two evidence-backed constraints. Churned accounts left before field crews ever used the mobile app, because onboarding taught office managers the scheduler but never activated technicians. Among won customers, nine of 15 said they had used an AI assistant to build a shortlist, and the deals Fieldline lost went to competitors that kept appearing in those AI answers.
Fund the constraint, stage the money, set kill lines
In the Fieldline example, paid search gets no extra funding and no cut. It still produces deals at an acceptable cost, but the incremental return is weaker than the return from fixing onboarding or AI search visibility. The plan holds 15% of the budget back until day 45, stages the rest against evidence, and gives each line one kill metric. No initiative gets renewed just because it was in last quarter’s plan.
Some of that work lives with product or customer success, not marketing. As the column puts it, “The next $100,000 of growth often belongs to a team that doesn’t own the marketing budget.”
Before your next budget meeting, place retention next to traffic on the same page. The stage converting worst for your price point is usually where the next dollar belongs.
Source: Search Engine Journal
