# Red Team, Blue Team

> One group presents a plan, a red team tries to find its weak points, and the blue team defends and improves it. A structured way to stress-test ideas. Duration: 1 hour 15 minutes. Group size: 8–40 people. Setting: Indoor. Below you will find a step-by-step guide, the materials and facilitator tips.

URL: https://bravodays.com/en/team-building-library/red-team-blue-team
Last updated: 2026-10-21
Publisher: BravoDays (https://bravodays.com)

## Key facts

- **Duration:** 1 hour 15 minutes
- **Group size:** 8–40 people
- **Setting:** Indoor
- **Energy level:** Active
- **Materials:** A short written plan or proposal (one page), Two rooms or corners, Flip charts and markers
- **Price:** Free, no sign-up

## Objective

Strengthen a plan by inviting constructive challenge, and practise separating ideas from the people who propose them.

## Materials

- A short written plan or proposal (one page)
- Two rooms or corners
- Flip charts and markers
- A timer

## Step by step

1. Choose a real plan and share a one-page summary with everyone.
2. Split into a blue team (the plan's owners) and a red team (challengers). For larger groups, create several pairs of teams.
3. Red team (20 minutes): prepare the three strongest arguments why the plan could fail, thinking like a competitor, a sceptical customer or a regulator.
4. Blue team (20 minutes): anticipate weaknesses and prepare improvements.
5. Exchange (20 minutes): the red team presents its challenges; the blue team responds, accepting the points that are valid.
6. Together, list the changes to the plan and assign owners.

## Facilitator tips

- Set ground rules: challenge the plan, not the people, and back up points with evidence or examples.
- Thank the red team explicitly; their job is to help the plan succeed.

## Related pages

- [Team building library](https://bravodays.com/en/team-building-library)
- [Get a quote](https://bravodays.com/en/get-a-quote)