The problem isn’t your team’s creativity. It’s how the session is set up and run.
You’ve been in this meeting. Someone says “Let’s brainstorm,” writes a question on the whiteboard, and stares at the room. A few people throw out ideas. The same voices dominate. After 15 minutes, the energy dies. Someone suggests “Let’s take this offline” — which is code for “this isn’t working and nobody wants to say it.”
Most brainstorming sessions fail before a single idea hits the board. Not because the team lacks creativity or because the topic isn’t important. They fail because the session was never properly set up — and the person running it doesn’t know how to keep the room producing.
Here’s how to fix that.
Start With the Objective — and the Context Behind It
Before you invite anyone into the room, do your homework. A brainstorm without preparation is just a conversation with sticky notes.
Get clear on the purpose. Why is this brainstorm happening now? Is the team trying to solve a problem that’s been getting worse? Responding to a new opportunity? Redesigning something that isn’t working? The purpose tells you what kind of thinking the room needs to do — and that shapes how you set up the entire session.
Define the desired output. What should exist at the end of this session that doesn’t exist now? A list of potential solutions? Ideas for a new program or service? Opportunities the team hasn’t explored? If you can’t describe the output in one sentence, the brainstorm isn’t ready to run.
Gather background. Talk to the session sponsor or key stakeholders beforehand. Understand the history — what’s been tried, what’s failed, what constraints exist. Ask about the specific issues, challenges, or opportunities driving the brainstorm. The more context you have going in, the better your setup prompts will be — and the less time the group will waste rehashing what everyone already knows.
The objective and context shape everything — the prompts you use, the examples you give, the ground rules you emphasize, and how you guide the group. Without them, you’ll get a room full of people generating ideas that don’t connect to anything actionable.
Design Your Prompts in Advance
This is the prep work most people skip — and it’s the reason most brainstorms fall flat.
Once you understand the objective, the context, and the background, draft the prompts you’ll use to guide the group. This means writing out — word for word — the scene-setting language, the deepening questions, and the direct question you’ll ask. Don’t wing it. If you walk in without designed prompts, you’ll default to cold, flat questions that drive the room silent. The difference between a brainstorm that produces 15 surface-level ideas and one that produces 60 actionable ones often comes down to how well the prompts were crafted beforehand.
Think about what scenario will put participants closest to the problem or opportunity. What experience have they had that connects to the topic? What emotions or frustrations will help them access their best thinking? Build your prompts around those.
You’ll also want to prepare one example response — a sample idea that shows the type and level of thinking you’re looking for. You’ll deliver this during the session to remove ambiguity before the brainstorm begins.
Launch the Brainstorm
When the group is in the room, you do four things before any brainstorming begins.
First, introduce the brainstorm topic. Give the group a brief overview of what you’ll be brainstorming and why. Keep it concise — this isn’t a presentation. It’s context-setting so everyone understands what they’re about to work on.
Then, give your example. Share the sample idea you prepared to show the group the level and type of response you’re looking for. This gives quieter participants permission to contribute and shows everyone what a response looks like so nobody is guessing when the brainstorm begins.
Next, set the ground rules. These aren’t suggestions. They’re the operating agreement for the session.
All ideas are welcome. There are no bad ideas in a brainstorm. The wild idea that sounds impractical may spark the practical idea that changes everything.
Build on each other’s ideas. If someone’s idea triggers a related thought, say it. Brainstorming is cumulative — the best ideas often come from combining or extending what someone else started.
No critiquing or evaluating during the brainstorm. This is the hardest rule to follow and the most important. The moment someone says “that won’t work” or “we tried that,” the room shuts down. Evaluation comes later. Right now, the only goal is volume.
One conversation at a time. Side conversations kill momentum and make people feel unheard. When someone is sharing an idea, the room listens.
Stay focused on the prompt. It’s easy for brainstorms to drift. If an idea is interesting but off-topic, capture it in a “parking lot” — a separate flip chart or board where you hold off-topic ideas so they’re not lost but don’t derail the current discussion. Then bring the group back to the question.
Ground rules only work if you enforce them. When someone critiques an idea mid-brainstorm — and someone will — don’t let it slide. Politely intervene: acknowledge what they said, then redirect. “I hear you — let’s capture that concern for the evaluation step. Right now, we’re not judging ideas — we’re just getting them on the board.” Keep your tone warm but clear. If you let one critique pass without addressing it, the room learns that the rules are optional — and participation drops.
Then, ask if there are any questions before you begin. This clears confusion, addresses any hesitation, and signals to the group that you’re about to shift into a different mode. Once questions are answered, the room is ready.
Deliver Your Prompt — Don’t Just Ask a Question
This is where the prep work pays off. Most people running a brainstorm jump straight to the question they want answered:
“What are the problems with our onboarding process?“
It sounds reasonable. It’s direct. And it drives the room silent. The participants have to do all the mental work on the spot — recall their experiences, sort through them, figure out what’s relevant — all in the moment, under pressure, in front of their colleagues. Some people can do that quickly. Most can’t. So you get three people talking and twelve people watching.
Instead, deliver the full prompt you designed in your preparation. It has three parts — and the order matters.
Part 1: Open with a visualization prompt. Start with language that puts participants into a scenario. These phrases do the heavy lifting:
- “Think of a time when…”
- “Imagine you’re in the middle of…”
- “Reflect on a situation where…”
- “Picture yourself about to…”
- “Consider the last time you had to…”
This shifts the group from abstract thinking to lived experience. They’re not analyzing a topic — they’re re-entering a moment they’ve actually been through.
Part 2: Deepen the picture. Don’t rush to the question. Stay in the visualization and add detail. “Think about what slowed you down. The steps that felt redundant. The handoffs that fell apart. The moments where you thought, ‘There has to be a better way.'” Now they’re not just remembering — they’re connecting to the frustration, the opportunity, the insight. Ideas are forming before anyone has said a word.
Part 3: Now ask the direct question. Only after the group can see their answers do you ask the What or How question: “What are some of those frustrations?” or “How might we redesign that process?” or “What would make this work better?“
This is the question most people lead with. But when you deliver it last — after the visualization has done its work — the room responds immediately instead of going silent.
Let the Prompt Land — Then Let Them Write
After you deliver the prompt and ask the direct question, resist the urge to fill the quiet. Even with a strong setup, not everyone processes at the same speed. Give the room a beat to let the visualization finish working.
Then, before opening verbal discussion, give participants 60 to 90 seconds to jot down their ideas silently. This one step dramatically improves both the quantity and quality of what the group produces.
Why? When the first person speaks, their idea shapes what everyone else says next. The group anchors to it — building on it, reacting to it, or unconsciously filtering out ideas that don’t relate to it. The quieter thinkers, who may have had completely different and equally valuable ideas, never share them because the conversation has already moved in a direction set by whoever spoke first.
Silent writing levels the playing field. Everyone captures their original thinking before anyone else’s ideas influence them. When you do open the floor, you’ll hear a wider range of ideas — and the introverts in the room will contribute at the same level as the extroverts.
How to Run the Room Once Ideas Start Flowing
The ground rules set the expectations. But it’s your behavior as the person running the session that enforces them — and keeps the ideas coming.
Never edit what someone says. If you’re capturing ideas on a flip chart or whiteboard, write what the person said — not your interpretation of it. You can abbreviate for speed, but the words should be theirs. The moment you rephrase someone’s idea, you’ve filtered it. And the rest of the room notices.
Never ignore or dismiss an idea. Every contribution gets captured. Period. Even if it overlaps with something already on the board. Even if it seems off-base. People need to see that their idea made it onto the chart. That’s what keeps them contributing.
Never judge. No raised eyebrows. No “interesting…” in a tone that says otherwise. No “okay, but…” Your job while running the brainstorm is to receive and record, not evaluate. Evaluation happens in a completely separate step, after the brainstorm is done.
The goal is quantity first. A good brainstorm produces a long list — not a refined one. You want 40, 60, 80 ideas on the wall. The narrowing, grouping, and prioritizing happen after. If you try to evaluate while generating, you kill the flow and cut the list short.
Keep the energy moving. When ideas are flowing, keep pace — capture fast, acknowledge contributions, prompt for more. “What else?” and “Who has another one?” keep the rhythm going.
A note on larger groups: If you have more than 10 or 12 people in the room, don’t try to facilitate and capture at the same time. Assign a dedicated scribe to write on the flip chart while you focus on reading the room, managing dynamics, and keeping the energy up. Trying to do both means you’ll do neither well. I always use our digital collaboration platform with larger groups — participants submit ideas in real time, everyone can see contributions appearing on screen as they’re entered, and it produces a higher volume of ideas in less time.
Do a round robin before you close. When the energy starts to fade, don’t just end it. Go around the room and give every person one last chance to contribute. “Anyone have one more? We’ll go around — if you have something, share it. If not, just pass.” This does two things: it catches the ideas still sitting with quieter participants who haven’t spoken up, and it gives the group a clear, definitive ending. When the last person passes, the brainstorm is complete — and everyone knows it.
Know when to stop. Once the round robin is done, close it cleanly. Don’t drag it out trying to squeeze a few more ideas from a room that’s given you everything it has. Thank the group, acknowledge the volume, and move to the next step.
What Comes After the Brainstorm
The brainstorm produces the raw material. What you do with it next is just as important. Group similar ideas into themes, eliminate true duplicates, and then prioritize. Techniques like dot voting — where each participant gets a set number of votes to place on the ideas they think have the most potential — work well for quickly surfacing the group’s top priorities. From there, you can evaluate feasibility, assign ownership, and build an action plan.
The key is that evaluation is a separate, structured step. Never blend it into the brainstorm itself.
The Hard Part
Running a brainstorm that actually produces isn’t complicated — but it does take preparation. The objective, the context, the prompt design, the ground rules, the silent writing, the facilitation discipline, the ability to manage group dynamics in real time while staying neutral — that’s a skill set most people haven’t been trained in.
If your team brainstorms regularly and the results consistently fall short, the issue probably isn’t the people in the room. It’s the process.
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