After 65+ investments, the single most common hiring mistake I see founders make isn't a bad engineering hire or a weak head of sales — it's a marketer who can't drive revenue.
The wrong marketing hire looks great on paper: agency pedigree, a recognizable brand on the resume, a broad title. But they're measuring impressions when you need pipeline, and they're spending your runway on brand awareness you can't convert into customers.
The Two Types of Marketers — and Why Founders Keep Hiring the Wrong One
There are two fundamentally different kinds of marketers. Brand marketers build awareness, craft narrative, and optimize for reach and sentiment. Demand marketers build pipeline, optimize conversion funnels, and live and die by CAC.
Most B2B startups between pre-seed and Series B need demand marketers. But most founders hire brand marketers — because brand marketers have more polished resumes, worked at companies everyone recognizes, and tell a better story in interviews.
The tell is in how they talk. Brand marketers say "increase brand awareness" and "own the narrative." Demand marketers say "drive 40 SQLs per month" and "get CAC below $800." One is measured in feelings. The other is measured in dollars.
I've watched founders burn $400K+ on a VP of Marketing who built a gorgeous brand book and ran a splashy content series — while pipeline flatlined for 18 months. The company eventually let them go and replaced them with a former SDR-turned-growth-marketer who had never held a VP title. Pipeline tripled in two quarters.
The Numbers That Define a Revenue-Generating Marketer
Good marketers know their numbers. Great marketers can recite them without looking anything up. In every interview, I ask candidates one question before anything else: what was your CAC at your last company, and how did it change while you were there?
If they can't answer it, the interview is effectively over. If they give me a range with context — "we started at $1,200, I rebuilt the paid acquisition stack, and got it to $680 in 14 months" — I lean forward.
The benchmarks that matter: marketing-sourced pipeline should represent 30-50% of total pipeline by Series B. Top-performing B2B marketing teams generate 4-6x their own fully-loaded cost in pipeline annually. CAC should be compressing by 15-20% per year once the engine is running. If it isn't, the marketer is running campaigns — not building a system.
Red Flags That Eliminate Candidates Immediately
- •Can't tell you their CAC or pipeline-sourced revenue at their last company — if they didn't track it, they didn't own it
- •Has never been accountable to a quota, pipeline target, or CAC ceiling — accountability is the forcing function that creates revenue marketers
- •First priority is "refresh the brand" or "audit the messaging" rather than "build the pipeline funnel" — a brand audit is a six-week delay before any revenue impact
- •Has only managed agencies and contractors — has never personally written copy, run a paid campaign, or set up attribution themselves
- •References are exclusively from brand, creative, or agency contexts — zero references from sales leaders who can speak to pipeline quality
- •Reports conversion metrics in MQLs rather than SQLs — MQLs are a leading indicator, but pipeline dollars are the job
The Take-Home Assignment That Tells You Everything
Every strong marketing candidate I've seen hired at a portfolio company completed a take-home assignment — and they loved it. Because it gave them the chance to show their actual thinking, not just their polish in a room.
The assignment: build a 90-day plan to generate $500K in qualified pipeline. Give them your ICP, your ACV, and your current channel mix. No more. See what they do with it.
The best submissions I've reviewed have three things in common: they ask clarifying questions about data availability before writing a single word of strategy; they make specific channel bets with specific reasoning (not "we should try LinkedIn" but "LinkedIn sponsored content with a $15K monthly budget should generate 120 MQLs at a $125 CPL based on benchmarks for this ICP"); and they sequence the 90 days with clear week-by-week priorities, not a vague roadmap.
Candidates who produce generic "awareness-consideration-conversion funnel" slides without a single real number failed before they submitted. Pay candidates $500 for the assignment — it signals you take the role seriously and filters out people who just want a title bump.
The best marketing hire you'll ever make is a growth-minded operator who's never had a marketing title. The worst is a "VP of Marketing" who has never personally generated a lead.
Stay current with VC and startup trends at Value Add VC. Originally published in the Trace Cohen newsletter.