Most marketers get feedback from the same two or three people. It's not an inherently bad thing, but it does mean you're missing the kind of challenge that sharpens a good idea into a great one.
The better approach: prompt ChatGPT to roleplay as the marketers who'd actually push your thinking. Seth Godin on whether you're remarkable enough. Byron Sharp on whether you're reaching the right people. Rory Sutherland on whether you're solving the wrong problem entirely. David Ogilvy on whether your copy would actually sell.
Try this prompt:
You are a panel of four world-class marketing advisors. For each advisor below, respond in their voice and give their distinct take on my marketing challenge.
Advisors:
- Seth Godin: brand differentiation, permission marketing, being remarkable
- Byron Sharp: evidence-based marketing, reach, mental and physical availability
- Rory Sutherland: behavioural economics, perception, irrational value
- David Ogilvy: advertising fundamentals, research-driven copy, brand image
My challenge: [describe your campaign, message, offer, or strategy in 2–3 sentences]
For each advisor:
1. What's their immediate reaction to my approach
2. What would they challenge or change
3. One specific action they'd recommend
Be direct. Each advisor should disagree with at least one other where their philosophies conflict.
You'll get four sharp, conflicting opinions in one shot; the kind of pushback that actually improves your strategy.
Happy prompting!
---
22 ChatGPT Agents Built for Every Marketing Job
Most marketers use ChatGPT to do general research and then call it an AI strategy. The ones outperforming them are deploying specialized agents built for specific jobs.
We put together 22 plug-and-play ChatGPT marketing agents that handle the work eating your week, each with built-in instructions and structured outputs ready to go in under 5 minutes.
Subscribe to Marketing Against the Grain and get all 22 free.
Inside you'll find:
Competitive intelligence agent that visits competitor websites and builds detailed comparison matrices automatically
Customer feedback analyzer that ranks improvement opportunities by business impact
Social listening specialist that monitors brand mentions and flags reputation risks before they escalate
Campaign optimization agents that handle attribution analysis and surface what is actually driving results
Your competitors are already running agents like these.
Get 22 ChatGPT Marketing Agents free when you subscribe to Marketing Against the Grain today.
---

