Founders often ask me how they will know, early, whether a fractional CMO is working. The honest answer is that revenue is the wrong first measure: it lags the work by months. The right answer is a scorecard that weights leading indicators early and shifts to lagging ones as the engagement matures, adjusted for the company's stage. This piece is about how to measure. If you want the order in which I actually do the work, read my first 90 days article instead.
Leading vs lagging indicators
Lagging indicators tell you what already happened: closed revenue, CAC, CAC payback, net revenue retention. They are what the board cares about, but they move slowly and they mix in factors outside marketing, such as sales capacity or product changes. Leading indicators tell you whether the machine that produces those outcomes is improving: tracking accuracy, qualified pipeline created, conversion rate between funnel stages, speed to lead, cost per qualified opportunity, win rate on marketing-sourced deals. A good fractional CMO scorecard holds both, but weights them differently over time. Judge month one on leading indicators and month twelve on lagging ones. Doing the reverse either fires a good operator too early or keeps a weak one too long.
Day 30: foundations you can verify
By day 30 I expect to be judged on things that are binary or close to it. Has full access been granted and used? Is there a written diagnosis of where revenue is leaking, with evidence from the ad accounts and CRM rather than opinion? Is conversion tracking accurate enough that the numbers can be trusted, and if not, is there a dated plan to fix it? Is there an agreed definition of a qualified lead and a qualified opportunity, signed off by sales? Is there a baseline for every metric that will be reviewed at 90 and 180 days? None of these are growth numbers. All of them are prerequisites for growth numbers meaning anything.
Day 90: pipeline quality and efficiency trends
At 90 days the scorecard moves to leading commercial indicators. Is qualified pipeline created per month moving in the right direction against the day 30 baseline? Are stage-to-stage conversion rates improving, especially lead to qualified opportunity? Is cost per qualified opportunity stable or falling as spend is reallocated? Are marketing and sales using the same definitions and the same dashboard? Is there a documented channel plan with clear kill and scale criteria? I would expect direction and evidence here, not finished results. A trend line with a credible explanation beats a single good month every time.
Day 180: revenue contribution and unit economics
By six months the lagging indicators should start carrying weight. Marketing-sourced and marketing-influenced revenue, measured with whatever attribution model was agreed at day 30. CAC and CAC payback by channel, not blended. Win rate and sales cycle length on marketing-sourced deals. For companies where expansion matters, early signals on retention and expansion from the customers marketing brought in. This is also the right time to review the scope in the contract and decide whether the next six months should focus on scale, efficiency or building an in-house team.
How the scorecard shifts by ARR stage
Early growth stage, roughly $1M to $3M ARR: the founder is often still the best salesperson and data is thin. Weight the scorecard toward foundations and qualified pipeline volume, and expect a lot of the 180-day work to be proving which one or two channels are repeatable. Scaling stage, roughly $3M to $8M ARR: there is usually enough volume to measure conversion properly, so efficiency metrics such as cost per qualified opportunity and CAC payback by channel matter more. Later growth stage, roughly $8M to $15M ARR: the scorecard should include team and system metrics, such as whether forecasting is reliable, whether the in-house team can run without the fractional leader, and how retention and expansion contribute. These bands are a practical way to split the range, not an industry standard.
Running the review
Keep the scorecard on one page, reviewed monthly with the founder in the room and quarterly with whoever else holds budget. Every metric should have a baseline, a target direction, an owner and a data source. If a metric cannot be measured reliably, say so and fix the measurement before arguing about the number. The scorecard should also be written into the contract appendix, which I describe in my article on fractional CMO contracts, so expectations are agreed before the first invoice.
FAQ
Foundations: access granted, a written evidence-based diagnosis, tracking accuracy, agreed lead and opportunity definitions, and baselines for every metric you will review later.
Revenue and unit economics should carry real weight from around six months. Before that, judge on leading indicators such as qualified pipeline and conversion rates.
A 90-day plan sequences the work. A scorecard defines how you judge whether that work is producing results. You need both, and they should be agreed together.