The proposal has been sitting in your inbox for nine days.
You read it twice the night it came in. You liked the people. You liked the plan. Then you got to the investment page, and something in your chest went tight. Is this the right deal? Twelve months or three? Monthly or one fixed scope? You forwarded it to your business partner with "thoughts?" and both of you have been too busy to answer.
Meanwhile the problem the proposal was supposed to fix is still eating your week.
Most founders stall on the bottom line. Start with the shape of the deal instead. The structure decides what you get, what you risk, and whether you can tell in month three if it's working. Get the structure right and the rest becomes a simple question of value. Get it wrong and even a small engagement turns expensive.
This is a founder's guide to that structure. It's one piece of our larger playbook on growth systems for B2B service firms, and it's written from your side of the table.
Should a growth engagement be a retainer, a project, or a hybrid?
Decide what you're buying before you decide anything else. A growth engagement comes in four shapes: a project, a retainer, a hybrid of the two, or any of those with a performance piece on top. A project fits a problem with a finish line. A retainer fits work that compounds. A hybrid builds first, then runs. Match the shape to the problem, then judge it against the revenue that problem is costing you today.
The four ways to structure a growth engagement
Every growth proposal you'll see is one of these, or a blend. Each one buys you something and each one bites somewhere.
1. Project
A fixed scope with a finish line. A positioning reset. A website rebuild. A sales process mapped and documented.
What it buys: certainty. You know the deliverable, you know the date, you know what you're signing up for.
Where it bites: a project ends. The website launches and nobody is assigned to feed it. The sales playbook gets written and lives in a folder. Projects fix things that break once. Growth problems that need weekly attention come right back after the project wraps.
Use it when: the problem has a clear edge. You can describe "done" in one sentence.
2. Retainer
A monthly engagement for ongoing capacity, judgment, and execution.
What it buys: continuity. Someone owns demand, follow-up, and reporting, month after month. The work compounds because nobody drops it when a big client heats up.
Where it bites: a retainer with a vague scope turns into a subscription to activity. Posts go out. Reports land. Nobody can say what moved. The fix is a retainer tied to named outcomes and reviewed on a schedule.
Use it when: the work compounds over time. Generating demand, following up on every lead, and turning each win into the next one all fall here.
3. Hybrid
A defined build phase, then a run phase. Most of the founder-led firms we work with land here, because their problem has two halves. Something needs to be built that doesn't exist yet, and then it needs to be run until it's part of how the firm works.
What it buys: a clean start and a way to keep going. You see the build finish. Then the run phase keeps the build from going stale.
Where it bites: if the line between phases is fuzzy, you end up paying run-phase fees for work that belonged in the build. Ask for that line in writing.
Use it when: you need new systems installed and you don't have the people to run them yet. The 90-day growth system install is a hybrid by design: Diagnose, Install, Operate.
4. Performance component
A piece of the engagement tied to an outcome. Booked calls, qualified introductions, revenue in a defined channel.
What it buys: alignment. Both sides want the same number to move.
Where it bites: pure pay-for-performance rarely survives a B2B sales cycle. Your deals take months. You run the close. A partner who gets paid only when you sign a client is betting on your calendar, your follow-up, and your proposals, none of which they control. Those deals tend to collapse into arguments about who gets credit.
Use it when: it sits on top of a base fee, tied to a metric both sides can see in the same report.
What does each structure buy?
Strip the line items away and every proposal is selling one of three things.
Hours. Someone does tasks. You pay for time. This works for execution you've already designed.
Deliverables. Someone produces a thing. A site, a deck, a sequence. This works for problems with an edge.
Outcomes. Someone takes responsibility for a number and builds what it takes to move it. This is what growth engagements should sell, and it's the hardest to scope, because the partner has to understand your business well enough to stand behind a result.
Read any proposal and ask which of the three it's selling. Then ask which one you need. A founder who needs outcomes and signs for hours will spend a year wondering why nothing changed.
The worked example: putting the decision in context
Say you run a consulting firm doing $2.4 million a year. Your average client is worth $120,000 a year and stays about two years. Every new client comes through your network. You close most of what you pitch. You don't pitch enough, because you're also delivering.
These numbers are hypothetical. Run your own.
One additional client a year is worth $240,000 over its life. A win rate that goes from 55% to 70% on the same volume of pitches is worth several more. Now look at your calendar. If you're the only one who sells, the firm's growth is capped at the hours you have left after delivery. That cap is the real cost of doing nothing. We wrote about it in the cost of staying stuck.
This firm's problem has two halves. Nothing exists today that keeps conversations coming when the founder is buried, so something has to be built. Then it has to run every week, or it decays. A project alone gets you the build and leaves it unattended. A retainer alone skips the build and starts operating thin air. The hybrid fits.
Now the question stops being "is this a lot?" It becomes "will this install the systems that add one or two clients a year, and will I see evidence of it by month three?"
That's a much easier question to answer. It's also a much better question to ask the partner across the table.
What should be in the proposal?
A good growth proposal answers six questions on the page. A weak one makes you ask them.
- What outcomes are we working toward? Named. Measurable. "More visibility" doesn't count.
- Which systems get built? Position, Generate Demand, Convert, Deliver, Compound. The 5 systems every B2B service firm needs make a good checklist.
- Who does what? On their side and yours. Your time is a cost too. Count it.
- How often do we review? Monthly at minimum. Quarterly, next to revenue.
- What metrics will we judge it by? Leading indicators for months one through three, revenue indicators after.
- What happens at the end of each phase? Renew, change scope, or part ways. Written down before you start.
Oaklyn Consulting is a useful model for question five. The firm reviewed marketing every quarter next to the sales funnel: revenue, win rate, acquisition cost. That rhythm is part of why the firm could point to a 93% year-over-year increase in gross profit and a win rate that climbed to 78% from 58% in 2022. The structure made the progress visible, so nobody had to guess whether the engagement was working.
Red flags on the investment page
A few patterns should make you slow down.
Activity counts with no outcome attached. "12 posts, 4 emails, 2 blogs a month." Fine as a delivery plan. A weak answer to "what will change?"
No phase gates. A 12-month commitment with no defined review point puts all the risk on you.
Pure pay-for-performance from someone who doesn't control the close. Generous on paper. Fragile in practice.
No mention of your time. Every real growth engagement needs a few hours a month from the founder, especially early. A proposal that promises zero founder involvement is promising something it can't deliver.
Scope with no reasoning behind it. You should be able to see how each piece of the scope connects to an outcome. If you can't, ask. A good partner will walk you through it without flinching.
How to negotiate from the founder side
Negotiate structure and scope first. Everything else follows.
Ask to phase it. A build you can see finish, followed by a run phase you can renew, protects both sides.
Ask for leading indicators you'll see by day 90. TRANSEARCH USA is a good example of what early evidence looks like: clicks to book a call rose 115.6%, and booked calls overall rose 969%. You want a plan where the first signals show up in weeks, even if the revenue takes longer.
Ask what they'll need from you. Then decide whether you can give it. A great plan you can't staff is a bad deal.
And talk to their clients. SalesSparx founder Reese Gomez told us he estimates "at least a 10:1 return on investment" on the work. That's the kind of sentence you want to hear from a reference, in their words, about their numbers.
Frequently asked questions
Should a growth engagement be a retainer or a project? A project fits a problem with a clear finish line, like a website rebuild or a positioning reset. A retainer fits work that compounds over months, like generating demand, following up, and turning each win into the next one. Most founder-led firms need both: a defined build, then an ongoing run phase.
What is a hybrid growth engagement? A hybrid starts with a defined build phase, where the systems that don't exist yet get installed, and then moves into a run phase, where those systems get operated until they're part of how the firm works. It fits firms that need something new built and don't have the people to run it yet.
Should a growth engagement include a performance component? A performance component can align incentives, but pure pay-for-results rarely works in B2B services because sales cycles are long and the founder still controls the close. A small performance piece tied to a metric both sides can see, on top of a base fee, is the version that holds up.
What should a growth engagement proposal include? Named outcomes, the systems that will be built, who on each side does what, the cadence of reviews, the metrics you will judge it by, and what happens at the end of each phase. If a proposal lists activities with no outcome or measure attached, you are buying hours.
How do I know if a growth engagement is worth it? Compare it to the revenue the founder's calendar is capping today. Work out what one more retained client, or a higher win rate, is worth to you over a year. Then ask whether the engagement installs the systems that produce it, and how you will see progress by month three.
The takeaway
Pick the structure that matches the problem. Tie it to outcomes you can see. Put review points in writing. Then the decision is a value question you can answer in an afternoon, and that proposal stops sitting in your inbox.
The full picture of what those systems are and how they fit together lives in our growth systems for B2B service firms playbook. If you want a second set of eyes on a proposal, or want to see how the math works for your firm, let's look at it together.