J/MATUSZEWSKI
Available Q3 2026 · 2 slots
Contact
Acquisition Engine · DTC Growth

When growth stalls, or CAC starts eating your margin, the engine is the problem.

I find why your acquisition stopped scaling, cut the spend that never worked, and rebuild it to grow on contribution margin. Then I hand your team the system that keeps it running.

Book the diagnostic →
Acquisition, modeled across markets
01Two ways the engine breaks
You're probably living one of these.
Track A

Break the ceiling

Spend is up. New customers are flat. Every channel claims it is working and the total does not add up. You have run out of obvious levers.
→I find where growth is still available, separate what scales from what is saturated, and rebuild the engine around it.
Track B

Stop the margin bleed

CAC keeps climbing. Payback is stretching. Finance is asking harder questions. You are growing into a thinner margin every quarter.
→I reset targets from your unit economics, cut the spend that was never incremental, and get back to growth your margin can carry.
02The Diagnosis
What is actually wrong, and why your reports will not tell you.
01

Your platforms are competing for credit. The attribution totals add up to more than your revenue.

02

Retargeting is eating budget for customers you would have kept anyway.

03

Nobody has run the holdout, so "working" is an assumption, not a fact.

04

Your targets came from a benchmark, not your contribution margin.

None of this shows up in a platform dashboard. That is exactly why the ceiling holds and the margin keeps leaking.
03What Changes
You stop guessing and start growing on numbers that survive a test.
A

The real number

Every channel tested with a holdout. Budget follows incremental customers, not self-reported credit.

B

Targets from your economics

nCAC and payback derived from your contribution margin, not a benchmark slide.

C

A system, not a dependency

The pacing and decision models your team runs after I leave. You keep the capability.

D

Caught before it costs you

The broken feed and the double-count, found before they reach a decision or a board deck.

Daily pacing · incremental nCACSignal --
One number your team acts on. Not forty dashboards. The system says what to scale today and what to pull, and it survives the holdout.
04Evidence
+0%
New customer growth, year over year, after the ceiling broke
Flagship 8-figure DTC account
0%
of "conversions" found non-incremental, budget reallocated
After geo holdout testing
REPORTED
REAL
−0%
Time from data to decision
Dashboards replaced with a decision system
Figures anonymized by agreement. Categories, not clients.
05How It Runs
01

Audit

Measurement teardown and incrementality baseline. Where the money goes, and what your dashboards are hiding.

Fixed fee
02

Design

Target architecture: nCAC, channel allocation, and the decision system your team will run on.

Fixed fee
03

Operate

Implementation and scaling against business metrics. Tested, not assumed, every step.

Retainer
04

Hand off

Your team owns the system. I stay only as long as the numbers need me, not a month longer.

Exit by design
06How I Operate
01Incrementality over attributionIf it does not survive a geo holdout, it did not happen.
02Contribution margin over ROASTargets from your economics, not a benchmark slide.
03Cohorts over averagesBlended numbers hide the truth. You act on the curve.
04Demand over hacksYou cannot out-tactic flat demand.
05Systems over tacticsA campaign expires. A system compounds.
07Who This Is For

Call me if

  • +You have hit a growth ceiling and more spend does not move it.
  • +CAC is climbing into your margin and finance has noticed.
  • +You suspect your attribution double-counts and cannot prove it.
  • +You are done with agencies that report what the platform told them.

Not me if

  • −Blended ROAS is your primary metric and it is working.
  • −You want a media shop that takes orders and runs the plan.
  • −You are under €500k spend and need volume more than rigor.
  • −You want a creative agency to produce campaigns.
Minimum €500k annual media
No referral fees
No platform rev-share

Find out which engine you are running.

One email. The diagnostic tells you whether you have a ceiling or a margin problem, and what it would take to fix it. If we are not a fit, you will hear it on the first call.

jacek.matuszewski@mta.digital →