How to write a marketing brief that gets better work

A brief is a decision document

The best brief is not the longest. It gives the team enough clarity to make good choices without prescribing every execution detail.

State what should change in the real world: more qualified enquiries, a clearer offer, a successful launch or stronger consistency.

Describe what the audience is trying to do, what they currently believe and what prevents action. Demographics alone rarely explain the decision.

Write the one idea the audience should remember. Support it with approved evidence and clearly mark claims that still need validation.

Define the next step and what happens after it. This shapes hierarchy, content and measurement.

Include mandatory elements, exclusions, legal requirements, languages, owners, schedule and approval process.

What must be true for this project to count as successful? If the answer is vague, the brief is not finished.