Imagine walking into a cardiologist’s office and announcing that you need quadruple bypass surgery. A doctor who treats you as always right, and books the operating theatre because you asked, is not giving good service. There is a word for it, and Blair Enns uses it precisely: malpractice.
Now recall the last agency pitch you sat through. You handed over a brief, they praised the brief, they quoted the brief. It felt smooth and respectful. It was the cardiologist reaching for the scalpel because the patient asked nicely.
Companies lose more money to this dynamic than to bad creative: they hire a vendor, pay expert prices, and only discover the difference a year later, when the work has been delivered exactly as ordered and nothing has changed.
The short version. There are only two roles a partner can play: the expert who leads you, or the vendor who takes your order. Experts diagnose before they prescribe, challenge your brief, and turn some clients away. And the pitch is the sample: how they behave in the sale is exactly how they will behave in the work.
The only distinction that matters
Enns, whose Win Without Pitching has shaped how expert firms sell for two decades, draws the line simply: “If you’re not the expert, you’re a vendor.” The vendor’s client arrives, in his phrase, “self-diagnosed and self-prescribed,” and the vendor executes. The expert leads: asks, challenges, sometimes disagrees, and takes responsibility for an outcome rather than a deliverable.
Here is why the distinction is worth money to you as a buyer. David C. Baker’s hiring rule, quoted by Enns: “You get hired for your expertise. You get fired for lack of service.” Service, the friendliness and responsiveness everyone showcases in a pitch, is not what creates the value. It is merely what preserves the relationship afterwards. If you select on agreeableness, you are selecting on the thing that never made anyone money.
There is also a structural reason the distinction matters more in branding than almost anywhere else. As David Aaker spent a career establishing, a brand is an asset that belongs at the strategy table, not a tactic delegated downward. A vendor can execute a tactic. Only an expert can be trusted with an asset.
The pitch is the sample
The most useful idea in this guide is Enns’s: “The sale is the sample of the engagement to follow.” How a firm sells you is a free, perfectly accurate preview of how it will work with you. If they will not lead in the sale, they will not lead in the work.
So read the first meeting as evidence:
Did they diagnose before prescribing? An expert asks about your business, your buyers, and what has already failed before proposing anything. A firm that arrives with the answer before hearing the question will do the same for the next twelve months.
Did they challenge anything? You are not paying for agreement; you have plenty of that internally. If nothing in your brief was questioned, either your brief is perfect or they did not read it as anything but an order form.
Did they talk about your outcome or their deliverables? Logos, campaigns and content are prescriptions. An expert starts from what should change in your market and works backwards.
Were they willing to lose you? Enns teaches expert firms a mantra that ends: “I accept that all will not follow.” A firm that qualifies you, that asks hard questions about budget, ambition and fit, is showing you it has standards. A firm that agrees to everything has none to show.
The questions to ask on the first call
Six questions, and what the answers tell you.
“Who is this not for?” Ron Baker’s line: “A firm is defined by the customers it does not have.” Specialists can answer instantly. Generalists say “we work with anyone,” which means expertise in no one.
“Tell me about a client you turned away, and why.” Tests the same thing from the other side. No examples means no positioning, and a firm without a position cannot build yours.
“What do you think we’re getting wrong?” The single fastest expert-vendor test. An expert has a point of view and will risk sharing it. A vendor compliments your strategy.
“Walk me through how you’d diagnose us before proposing anything.” You are listening for a process that starts with questions, research, or an audit, not a menu of packages.
“What would you need to believe to recommend we do nothing?” Experts can describe the conditions under which you should not buy. Vendors cannot imagine them.
“How will we know it worked?” An expert names business outcomes: pipeline, pricing power, share of search, the metrics that touch the P&L. A vendor names activity: deliverables shipped, impressions bought.
The red flags, quickly
They lead with price before understanding the problem. They accept your brief without a single hard question. They claim every industry and every service (“all things to all people” is Baker’s definition of a weak firm). Their case studies show outputs, never outcomes. They agree with everything you say, in the exact meeting where disagreement is free and useful. And the subtle one: the whole pitch is about them, their process, their awards, their tools, when the expert’s pitch is recognisably about you.
One caution in the other direction: leading is not dominating. Enns is clear that the best experts are closer to servant leaders; clients “don’t feel like they’re being led.” You are not looking for arrogance. You are looking for a spine.
What this costs you if you get it wrong
Hiring a vendor when you needed an expert produces a specific, predictable year: the work ships on time, everyone is pleasant, the invoices are exact, and at the end your market position is precisely where it was, because nobody in the relationship was responsible for moving it. You did not buy a bad service. You bought the wrong role.
The reverse error barely exists. Nobody hires an expert and regrets being led, questioned, and made to decide. Which tells you where to set the bar.
Brave New, plainly
Brave New is the strategy-led growth partner for high-stakes B2B. We build brands that get found, remembered, believed and valued.
What we believe: strategy is the moat and story is the weapon. AI made sameness free, which makes distinctiveness the most expensive asset in your category and the only one that compounds. So the machine does the volume and the versions, never the thinking. As Google and BCG put it in 2026, AI is an engine for growth, not a replacement for talent. The strategy holds the reins.
And what we refuse to do. We don’t do boring. We don’t do vanilla. We don’t do borrowed voices, templated copy, safe work that reads like the category, or dashboards that flatter while the brand quietly fades. Dull is a tax. Our clients don’t pay it.
Insight, with no mercy for the dull. If your brand sounds like everyone else, that is the problem we exist to fix.
What is the difference between an expert and a vendor? A vendor takes your order and executes your brief. An expert diagnoses first, challenges the brief, and takes responsibility for an outcome. You get hired for expertise and fired for lack of service, so buy expertise.
What should I ask an agency before hiring them? Ask who they are not for, what they think you are getting wrong, how they would diagnose you before proposing, and how you will both know it worked. The answers separate a point of view from a price list.
Is it a bad sign if an agency disagrees with my brief? Usually the opposite. Disagreement in the pitch is free and useful, and a partner willing to challenge you before being paid will keep doing it after. Total agreement is the red flag.
This piece pairs with “How to Talk About Your Value” and “The Tension Deficit.”
Sources: Blair Enns, “The Four Conversations” and Win Without Pitching (expert vs vendor, the sale as the sample, the Expert’s Mantra); David C. Baker via Enns on hiring and firing; Ron Baker on specialisation and diagnosis; David Aaker on brand as an asset; Google/BCG, “The New Era of Marketing Partnerships” (2026).




