In the first 90 days, a fractional CMO at a Series A company should deliver four things: a complete GTM audit with a written diagnosis, locked positioning and ICP definition, demand gen infrastructure that can run without them, and a measurable pipeline number with data behind it. Anything less and you hired a consultant who makes slides.
I’ve done this enough times to know what works and what doesn’t. The pattern is remarkably consistent across B2B SaaS companies in the $2M–$15M ARR range, and the mistakes are even more consistent. Here’s how I run it.
What Should a Fractional CMO Deliver in Days 1–30?
The first month is a listening and diagnosing month. You are not here to execute yet. You are here to understand why the current system produces the results it produces.
Start with the GTM audit. Pull every number you can get your hands on: pipeline by source, conversion rates at each stage, sales cycle length by segment, win/loss data, CAC by channel. Most Series A companies have some of this in their CRM and the rest in someone’s head. Your job is to get it all into one place and find the gaps.
Next, validate the ICP. The founders have a theory about who their best customer is. Sometimes they’re right. Often they’re describing who they want to sell to rather than who actually buys, deploys, and renews. Look at the last 20 closed-won deals. Who are they? What do they have in common? Where did they come from? That’s your real ICP until the data says otherwise.
Run a positioning assessment. Read every piece of marketing the company has produced. Visit the website. Read the sales deck. Listen to three or four recorded calls. Then ask five customers why they bought. The gap between what the company says about itself and what customers say about it — that gap is your positioning problem.
Finally, review the pipeline. Not the number. The structure. How is pipeline generated today? What percentage is founder-led? What would happen to pipeline if the founder stopped selling tomorrow? At most Series A companies, the answer is “it would collapse,” and that’s exactly the problem you’re here to solve.
By day 30, you should have a written document — I call it the GTM Diagnostic — that lays out what’s working, what’s broken, and what’s missing. No recommendations yet. Just the truth.
What Gets Built in Days 31–60?
Now you build. The diagnostic tells you where to focus. The second month is about making decisions and locking them.
Lock the positioning. This means making choices that exclude. If your positioning describes every company in your category, it’s not positioning — it’s a Wikipedia entry. You need a clear articulation of who you’re for, what you do for them, and why you’re the right choice. Write it down. Get the founder to sign off. Then enforce it everywhere.
Define the ICP with enough precision to be useful. “Mid-market SaaS companies” is not an ICP. “Series B infrastructure software companies with 50–200 employees, a platform engineering team, and a Kubernetes deployment” — that’s an ICP. The specificity matters because it drives every downstream decision: where you spend, what you write, who you target.
Select channels based on evidence, not ambition. A Series A company doesn’t have the budget to be everywhere. Pick two or three channels where you have reason to believe your ICP actually pays attention. According to Gartner’s 2023 B2B buying survey, 75% of B2B buyers prefer a rep-free sales experience — which means your content and digital presence do more of the selling than most founders realize. Choose channels that serve that reality.
Build the content infrastructure. This doesn’t mean “start a blog.” It means building a repeatable system for producing content that serves the buyer journey: awareness content that earns attention, consideration content that builds a case, and decision content that removes objections. Decide on formats, cadence, and who produces what. If you’re working with a fractional CMO who understands B2B SaaS, this system should be designed to run without them long-term.
What Launches in Days 61–90?
Month three is when work becomes visible. You’ve diagnosed, you’ve decided, now you ship.
Launch the first campaigns. These should be narrow and measurable. Don’t try to boil the ocean. Pick one segment of your ICP, one channel, one offer, and run it. The goal isn’t to generate a quarter’s worth of pipeline in 30 days. The goal is to prove the system works and start generating data.
Instrument the pipeline. Every lead source, every conversion point, every handoff from marketing to sales — all of it tracked, all of it reportable. If you can’t tell the CEO exactly how many qualified opportunities marketing generated this month and what they’re worth, your instrumentation isn’t done.
Establish a reporting cadence. Weekly pipeline review with the sales leader. Monthly GTM review with the CEO. Quarterly board-ready metrics. The specific numbers matter less at this stage than the discipline of looking at them consistently. You’re building a habit that the company will need long after your engagement ends.
By day 90, you should be able to answer three questions: Is our positioning resonating with the market? Are we generating pipeline from repeatable sources? Do we know what’s working and what isn’t? If you can answer all three with data, not opinions, the engagement is on track.
What a Fractional CMO Should NOT Do in the First 90 Days
This is where most fractional CMOs go wrong, and it’s worth being blunt about it.
Do not rebrand. A Series A company does not need a new logo, a new color palette, or a brand refresh. They need pipeline. If a fractional CMO shows up and starts talking about brand guidelines before they’ve looked at your conversion rates, that’s a red flag.
Do not hire. You don’t know enough yet. The GTM diagnostic will tell you what roles you need. Hiring before the diagnostic is how companies end up with a demand gen manager running campaigns to an undefined ICP with unvalidated positioning. That person will fail, and it won’t be their fault.
Do not build a 47-slide strategy deck. The diagnostic should be 5–8 pages. The strategy should be one page with clear bets and metrics. If the deliverable is a deck, you’re paying for theater.
Do not optimize what shouldn’t exist. Some campaigns, channels, and processes should be killed, not improved. A good GTM strategy consultant knows the difference between optimization and elimination.
Do not treat this like an advisory engagement. A fractional CMO should have their hands on the keyboard. They should be in the CRM, in the analytics, in the content calendar. If they’re only showing up for weekly calls and sending you frameworks, you don’t have a fractional CMO — you have a coach.
How the Physics of Growth™ Framework Guides the 90-Day Plan
The 90-day plan maps directly to the Physics of Growth™ framework that I use in every Strategnik engagement.
Days 1–30 are about measuring friction — identifying every point in the GTM system where energy is being wasted, buyers are dropping off, or the sales motion is fighting against itself. The diagnostic is fundamentally a friction map.
Days 31–60 are about building momentum — making the positioning, ICP, and channel decisions that allow compounding to begin. Momentum in a GTM system doesn’t come from doing more. It comes from doing the right things consistently. The decisions you lock in month two determine whether your efforts compound or dissipate.
Days 61–90 are about creating gravity — building the content, campaigns, and pipeline systems that pull prospects toward you rather than requiring you to chase them. A working demand gen engine with clear attribution is what gravity looks like in practice.
The framework keeps the 90-day plan honest. Every activity should reduce friction, build momentum, or create gravity. If it doesn’t do one of those three things, it doesn’t belong in the plan.
Frequently Asked Questions
How many hours per week should a fractional CMO work during the first 90 days?
More than you think. I typically run 20–25 hours per week in the first 90 days, then taper to 15–20 as systems get built. The diagnostic phase is intensive. Anyone offering 5–10 hours per week for a Series A company is going to produce surface-level work.
What should a fractional CMO cost at the Series A stage?
For a senior operator — someone who’s built and run marketing at venture-backed companies — expect $15K–$25K per month. Below that range, you’re likely getting someone who will learn on your dime. Above it, you should be asking why they aren’t full-time.
How do you measure whether a fractional CMO engagement is working?
By day 90, you should see three things: a functioning pipeline generation system (even if volume is low), clear metrics and reporting, and a written strategy that the team can execute without the fractional CMO in the room. Pipeline volume is a lagging indicator — the leading indicators are system quality and team capability.
Should a fractional CMO manage existing marketing team members?
Yes, if they exist. A fractional CMO who won’t manage people is an advisor, not a CMO. Managing the existing team, identifying gaps, and building the hiring plan are core responsibilities — not optional add-ons.
When should a Series A company hire a full-time CMO instead of fractional?
When you’ve validated product-market fit, have repeatable pipeline generation, and are ready to invest $300K+ per year in a marketing leader plus their team. For most Series A companies, that’s 12–18 months away. The fractional engagement bridges that gap and de-risks the eventual full-time hire by defining exactly what the role needs to be.
For the full pricing breakdown and ROI framework, see our Fractional CMO Cost guide.