<div class="gn-article"><div class="gn-hero gn-reveal"> <div class="gn-hero__image"><img src="https://cdn.prod.website-files.com/687a235da6861294eec73166/69fa713a994818f4e1e792ae_blob-69e9f2ae3fe48828617814.jpeg" alt=""></div> <div class="gn-hero__head"> <span class="gn-kicker"><span class="dot"></span>Growth</span> <h1 class="gn-title">Why Your Case Studies Aren&#39;t Winning You Business (And How to Fix Them)</h1> <div class="gn-meta"> <strong>The GO Network</strong> <span class="pip"></span> <span>24 April 2026</span> <span class="pip"></span> <span>5 min read</span> </div> </div> </div> <div class="gn-body"> <p class="gn-lede gn-reveal">Most agency case studies describe what happened. The ones that win business explain the thinking behind it.</p> <h2 class="gn-reveal"><span class="num">01</span>Why the Standard Format Fails</h2> <p class="gn-reveal">The typical agency case study follows the same structure. Client name, brief summary, what we did, pretty pictures of the output, results if available. It's a portfolio entry. It tells a brand what you made.</p> <p class="gn-reveal">What it doesn't tell them is how <em>you</em> think.</p> <p class="gn-reveal">When a brand-side marketing leader is reviewing agencies for a pitch or appointment, they're not primarily asking "have you done good work before?" They're asking "can I trust this agency to navigate my specific problem?" Those are different questions, and a portfolio-style case study only answers the first one.</p> <p class="gn-reveal">The brand is also reading your case study under time pressure, often alongside three or four other agencies' work. A case study that requires them to reconstruct the strategic logic from a list of outputs isn't going to land. A case study that makes the thinking legible immediately will.</p> <div class="gn-divider gn-reveal" aria-hidden="true"></div> <h2 class="gn-reveal"><span class="num">02</span>What a Brand-Side Buyer Actually Wants to See</h2> <p class="gn-reveal">When we talk to brand-side marketing leaders about what makes an agency case study useful, they describe the same things.</p> <p class="gn-reveal"><strong>They want to understand the problem, not just the brief.</strong> There's a difference between what the client asked for and what the underlying problem was. The best case studies name both. "The brief was to increase brand awareness in a new market. The actual problem was that the brand had strong recognition but zero relevance to a younger audience." That distinction shows strategic thinking before the work has even started.</p> <p class="gn-reveal"><strong>They want to see the decision.</strong> What did you choose to do, and why did you choose it over the alternatives? Most case studies describe the output without ever explaining the decision that produced it. Brands want to know how you make calls under uncertainty, because that's what they'll need you to do for them.</p> <p class="gn-reveal"><strong>They want proof that the outcome was real.</strong> Not a percentage uplift presented without context, but a specific, credible result with enough surrounding information to make it meaningful. "47% increase in engagement" means nothing without knowing the baseline, the time period, and what engagement was being measured. "We took the brand's email open rate from 14% to 28% over six months, against an industry benchmark of 18%" means something.</p> <p class="gn-reveal"><strong>They want to recognise their own situation.</strong> The most effective case studies are ones where a prospect reads them and thinks "that's the same problem we have." This doesn't mean your client has to be identical. It means the problem type, the constraints, or the strategic context should feel familiar.</p> <div class="gn-divider gn-reveal" aria-hidden="true"></div> <h2 class="gn-reveal"><span class="num">03</span>The Framework That Works</h2> <p class="gn-reveal">Restructure every case study around four elements.</p> <p class="gn-reveal"><strong>The problem.</strong> Not the brief. The actual commercial or marketing problem the client was facing. What was at stake? Why did it matter? One paragraph, specific and direct.</p> <aside class="gn-quote gn-reveal"><q>We chose to lead with an earned media strategy rather than paid because the brand needed credibility in the category, not just visibility. Paid would have generated awareness faster but wouldn't have built the trust we needed to shift consideration.</q><cite>The Framework That Works · The GO Network</cite></aside> <p class="gn-reveal"><strong>The decision.</strong> What approach did you take, and what were you choosing between? This is where most agencies fall short. They describe what they did but not why. That's a sentence that shows strategic judgement.</p> <p class="gn-reveal"><strong>The execution.</strong> What you actually made or did. Keep this concise. Brands want enough to understand the nature of the work, not a full project debrief. Two to three sentences and one strong visual is usually enough.</p> <p class="gn-reveal"><strong>The outcome.</strong> Specific, contextualised, honest. If the results were strong, show them properly. If the results were mixed, you can still show what worked and what you learned from it. Honesty about complexity is more persuasive than a row of inflated percentages.</p> <p class="gn-reveal">This structure takes more work than a portfolio entry. It requires you to understand the strategic logic of your own past work clearly enough to articulate it. That's the point. The process of building case studies this way forces a level of self-awareness about what you actually do that makes you better at explaining it in pitches too.</p> <div class="gn-divider gn-reveal" aria-hidden="true"></div> <h2 class="gn-reveal"><span class="num">04</span>Common Mistakes Worth Avoiding</h2> <p class="gn-reveal"><strong>Starting with the client name.</strong> Leading with "We worked with [Brand]" front-loads the credential and delays the problem. Brands are more interested in the problem than in your client list.</p> <p class="gn-reveal"><strong>Describing the brief as if it were the problem.</strong> "The client wanted a new brand identity" is a brief. "The client was losing ground to a new market entrant and the existing brand was no longer differentiated enough to justify its premium pricing" is a problem. The second version is the one worth writing.</p> <p class="gn-reveal"><strong>Results without context.</strong> A percentage increase means nothing without a baseline. A number without a benchmark means nothing. If you can't contextualise a result, either find the context or describe the outcome qualitatively.</p> <p class="gn-reveal"><strong>Too many visuals, not enough thinking.</strong> A case study that's mostly images might look like strong work, but it doesn't show strategic capability. Brands want to see your thinking. Give it room. On the flip side, not enough visuals can give your case study not tell the story enough, as humans, we resonate with images, if you're lacking images your limiting the story you want to tell.</p> <p class="gn-reveal"><strong>The same case study for every pitch.</strong> Case studies should be selected and sometimes lightly adjusted based on which problem types are most relevant to the prospect. Sending a retail case study to a financial services brand, or a brand awareness case study to a brand that's primarily focused on lead generation, signals that you're not thinking about them specifically.</p> <div class="gn-divider gn-reveal" aria-hidden="true"></div> <h2 class="gn-reveal"><span class="num">05</span>Making It Easier to Read</h2> <p class="gn-reveal">The structure above works. But case studies also fail on readability. A case study that requires significant effort to parse won't get read properly under time pressure.</p> <p class="gn-reveal"><strong>A few practical things that improve readability:</strong></p> <p class="gn-reveal">Lead with a one-sentence summary of the problem and outcome. This functions like a headline. It tells the reader what they're about to read and whether it's relevant to them before they invest time in the full piece.</p> <p class="gn-reveal">Use subheadings for each element. Problem. Decision. Execution. Outcome. This makes the structure legible at a glance.</p> <p class="gn-reveal">Keep the total length to a page or equivalent. Longer case studies don't get read more carefully. They get read less.</p> <p class="gn-reveal">If you need to know how to add a case study, see our previous article on adding case studies to The Platform <a target="_blank" rel="noopener noreferrer nofollow" class="text-primary underline decoration-primary" href="https://thegoportal.com/posts/110"><strong>Here</strong></a></p> <aside class="gn-callout gn-reveal"> <div class="gn-callout__label">What this means for you</div> <h4>Practical Takeaways</h4> <ul> <li><strong>Case studies are evaluated on strategic thinking, not just output quality.</strong> Brands are asking "can I trust this agency with my problem?" Not just "have they done good work?"</li> <li><strong>Describe the problem, not the brief.</strong> The brief is what the client asked for. The problem is what was actually at stake. The second is always more interesting.</li> <li><strong>Make the decision explicit.</strong> What did you choose to do and why, and what were you choosing between? This is the most skipped and most valuable part of any case study.</li> <li><strong>Contextualise every result.</strong> A percentage without a baseline or benchmark is meaningless. Give the reader enough to understand what the number actually means.</li> <li><strong>Select case studies by problem type, not by client name.</strong> The most relevant case study is the one where the problem most closely resembles the prospect's situation, not the one with the most impressive logo.</li> </ul> </aside> </div></div>