Most lost B2B deals end in silence, and we never find out why. Lucy Allen on the stories we invent to fill that silence, the rational buyer myth behind them and how Challenge designs marketing for how buyers really decide.
We have a live one right now. A really nice opportunity, a strong idea, genuinely excitable conversations, everyone on both sides leaning in. And then, over the past few weeks, it has just gone quiet.
If you run an agency, or any B2B business, you will know this pattern intimately. Brilliant ideas, incredibly encouraging conversations, a proposal people seemed delighted with, and then nothing. No rejection. No rejection. No feedback. Just buyer indecision wearing its politest disguise. A silence that gets longer the less anyone mentions it.
I also know exactly what we do next, because we are doing it now. We justify it to ourselves. They’re really busy. It was only speculative anyway. The timing probably wasn’t right. And my personal favourite, because we know these people well… I don’t want to be ‘that pushy salesperson‘.
Look at what every one of those explanations has in common. Each one quietly assumes that somewhere in that silent company, a considered, rational decision was made, and we are simply being spared the details.Â
Our behavioural science lead Ginny Follen wrote a brilliant piece on why B2B buyers are not as rational as we think, and the uncomfortable implication of her argument lands right here. If buyers are not the rational actors we imagine, then the tidy rational stories we tell ourselves about our quiet deals are probably fiction too. Comforting fiction, but fiction.
Behavioural science offers a more honest explanation for the silence. Often, nothing was decided at all. And doing nothing is not the absence of a decision. It is the most predictably human decision there is.
The easiest decision is no decision
Two well-evidenced principles explain why deciding nothing wins so often.
The first is status quo bias. People prefer the current state of affairs even when a change would leave them better off, because the current state is known and change is not. It is why the incumbent supplier so often keeps the contract without earning it. The incumbent does not have to be good, only familiar. Yes, switching might make things better. But it might make things worse, and loss aversion means the possible worse weighs heavier than the possible better. A known disappointment feels safer than an unknown promise. The spreadsheet everyone complains about has one unbeatable quality: nobody has ever been blamed for keeping it.
The second is omission bias. A bad outcome we caused feels worse than the same outcome we merely failed to prevent. Choose a new supplier and it fails, that is your failure. Stay put and the problem persists, that is just the weather. To a brain wired this way, going quiet on a promising deal is not rudeness or laziness. It is self-protection.
I find this oddly consoling. The silence was never a verdict on the pitch. It was a human being taking the easiest available exit, which is the door they came in through. And it means my reluctance to chase, for fear of being the pushy salesperson, is aimed at the wrong worry entirely. The buyer is not weighing whether I am pushy. They are weighing whether moving is safe.
Buyers can research alone. They cannot decide alone.
If deciding is the hard part, you would expect buyers to struggle most at the moment of commitment, not the moment of research. That is exactly what the newest evidence shows, from a telling place: how buyers use AI.
Gartner surveyed 645 B2B buyers in late 2025 and presented the findings in May 2026. On the surface, buyers want to be left alone. Some 70% prefer a completely digital, self-service buying experience, and 67% would rather have no sales rep involved at all. And yet 69% of the same buyers say they turn to a sales rep to validate what AI tells them. Half expect the information AI gives them to be misleading.
Behaviourally, this is not a contradiction. It is ambiguity aversion, our well-documented discomfort with acting on information we cannot fully trust, paired with the messenger effect Ginny Follen described in her article on why B2B buyers are not as rational as we think. The AI gave them the content. It cannot give them a credible messenger. So they go and find one, not for new information, but for permission to believe what they already have.
Buyers have never had more information and never found deciding harder, because information was never the scarce ingredient. Confidence was.
The exposed buyer
Why is confidence so scarce? Because the person on the other side of the deal is exposed, and their brain treats that exposure as the main event.
Ginny unpacked loss aversion properly, so I will not repeat her. The piece that matters for indecision is its cousin, anticipated regret. Buyers do not just weigh a potential loss, they pre-live the meeting where they get blamed for it. The business case has their name on it. Their credibility is spent championing an unfamiliar agency in rooms we will never enter. “Everyone else was doing it” is the only defence that survives a failed project, and choosing us does not come with one.
So the deal does not die of ignorance. It dies of anxiety. The buyer was not unconvinced. They were unprotected. And a human choosing between an uncomfortable known and an unprotected unknown will pick the known almost every time, however good the content was.
How we approach it at Challenge - 4 actions
This is where behavioural science stops being an interesting lens and becomes our working method. If the real enemy is the easy no-decision, the job of marketing changes. Stop auditing the message. Start auditing the decision. In practice, my team applies a specific principle to a specific point of friction, every time.
1. We change the question in the brief. Ginny’s question starts it: what is this person trying to decide, and what is getting in the way? Ours follows: what would make saying yes feel safe? The first diagnoses the friction. The second designs for loss aversion instead of pretending it is not there.
2. We arm the champion, not just the buyer. Consensus decisions run on social proof, the reassurance that people like us are choosing this. Edelman and LinkedIn’s 2025 research found 71% of the hidden decision-makers inside buying groups have little or no contact with sales, so your champion carries your case into those rooms alone. We build them proof that travels: the named client in a similar sector, the number the finance director will ask for, the objection answered before it is raised.
3. We shrink the first ask. Commitment builds in steps and friction kills momentum. A nervous buyer offered a large commitment defers. The same buyer offered a small, reversible step usually takes it, and each small yes makes the next one easier. If the only call to action is “book a demo”, the journey has one large door and no small ones.
4. We sell the exit, not just the entrance. The strongest antidote to anticipated regret is reversibility. Honest implementation stories, named risks, a visible route back if it goes wrong. It feels like weakness to write. It reads as confidence, and it removes the exact fear blocking the signature.
None of this is a chapter of biases bolted onto a proposal. It is the reasoning underneath every brief, journey and piece of content we build, applied by a team formally trained in it. The question I ask of any campaign is not “is the message right?” It is “have we removed the reasons a human being would hesitate?”
The competitor with no name
I still cannot tell you where your lost deals went. Nobody can, and I would be wary of anyone who claims otherwise. But I can tell you the most honest explanation for the silence. A person who was never as rational as your pipeline assumed took the safest option available, which was no option at all.
That is not a message problem. It is a decision problem, and it cannot be out-argued, only designed out, one small snag at a time.
Engagement is everything. Behaviour explains why. And the decision is where both are won or lost.
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