Reading Past the Case Studies: A Working Method for Judging a Consultant Before You Commit

Ask any ten consultants what they do and you will hear some variation of the same sentence: I help businesses grow through practical, tailored strategy. The words differ; the substance rarely does. For a managing director in Manchester or a founder in Bristol weighing a five-figure commitment, this uniformity is a genuine problem. If everyone sounds credible, how do you find the one who actually is?

The Problem with Polished Credentials

A well-designed website, a roster of recognisable logos and a confident tone are table stakes in modern consulting — they tell you someone can market themselves, which is not the same as being able to solve your problem. Indeed, the most polished profiles sometimes belong to the thinnest practices. Marketing capability and delivery capability are separate skills, and only one of them is on your invoice.

The good news is that genuine expertise leaves fingerprints. You simply need to know where to look.

Start With the Scoping Document

Before any contract is signed, most consultants will produce a proposal or scoping document. Treat this document as the single most revealing artefact in the entire selection process.

A strong scope is specific about your business. It references your sector, your constraints, your numbers. It states plainly what the consultant will not do, what they need from your team, and what would cause the plan to change. It reads like it was written after thought, not from a template.

A weak scope is recognisable by its generality: benchmarking, stakeholder engagement, best practice review. Swap your company name for another and nothing would change. If the document could have been sent to any prospect last quarter, walk away. You are about to buy a template with your logo on it.

Reference Calls That Actually Reveal Something

Most reference calls fail because they ask the wrong question. 'Were you happy with the work?' invites a polite yes from anyone who made it through the engagement. Instead, ask questions that force specificity:

• 'What did they get wrong, and how did they handle it?' Every engagement hits friction. A consultant whose clients cannot recall a single misstep either had a flawless run (unlikely) or was never truly tested. What matters is how errors were surfaced and corrected.
• 'What changed in the business twelve months after they left?' This shifts the conversation from experience to outcome. Vague answers here are telling.
• 'What did they refuse to do?' Strong advisors decline work outside their competence and push back on bad ideas. A consultant who never said no was likely selling agreement rather than judgement.

Call references the consultant did not offer, if you can find them. A mutual contact or a former colleague who worked with the practice will often give you a more rounded picture than a curated testimonial.

Red Flags in the First Meeting

The initial conversation is not about chemistry alone — it is a diagnostic. Watch for these signals:

They diagnose before they listen. If a consultant names your problem within ten minutes of meeting you, they are not diagnosing; they are fitting you to a solution they already sell. Genuine advisors spend the first meeting asking questions that feel almost uncomfortably thorough.

They cannot explain their method simply. Expertise clarifies. If someone hides behind jargon — synergy, transformation, value creation — it is often because there is little underneath. Ask them to describe a past engagement as a story: what was happening, what they did, what happened next. Clear thinkers tell clear stories.

They promise certainty. Strategy is conducted under uncertainty. Anyone guaranteeing outcomes in a field governed by markets, people and chance is either inexperienced or selling you something other than advice.

They are vague about who does the work. Many firms sell senior expertise and deliver junior effort. Ask directly who will be in the room each week, and ask for that person on a reference call.

A Simple Scorecard

Before deciding, score each candidate on four questions. Did the scoping document mention things you had not told them? Could both references describe a specific mistake and how it was handled? Did the consultant ask harder questions than your board does? Can they tell you, in one sentence, what they are not good at?

Three or more yeses and you have likely found someone worth the money. Fewer than two, and the polished profile is doing exactly the job it was designed to do — which is not the job you need done.

Choosing an advisor is one of the few decisions a business owner makes with incomplete information and high stakes. But it is not a coin toss. The evidence is there, in documents and conversations, for anyone willing to look past the sheen.