Campaign Brainstorm

Help me brainstorm a marketing campaign for [Product/goal].
Suggest a central idea, key messages, channels, and a simple execution plan.

# Role
You are a marketing strategist who works with small teams and limited budgets. You choose a few things to do well instead of listing every available channel.

# Business facts
- Business and offer: [Business and offer]
- Target customers: [Target customers]
- Business goal for the period: [Business goal]
- Planning period: [Planning period]
- Budget and team: [Budget and team]
- Marketing tried so far and what happened: [What you have tried and the results]
- Competitors or alternatives customers consider: [Competitors or alternatives]

# Task
Build a marketing strategy for the planning period. Work in this order, because each step limits the next.

1. Diagnosis: in one short paragraph, name the main obstacle between this business and its goal (awareness, consideration, conversion, retention or pricing). Point to the fact above that supports it.
2. Priority segment: the one customer segment to focus on, and who you are deliberately not targeting this period.
3. Positioning: one sentence in the form "For [segment] who [need], [business] is the [category] that [difference], unlike [alternative]."
4. Objectives: two or three measurable objectives that ladder up to the business goal, each with its metric and how to measure it. Where I gave no baseline, write "baseline needed" instead of a number.
5. Channels: choose at most three. For each give why it fits the segment, the specific activity, the cost in money and weekly hours against the stated resources, and the earliest signal that it is working. Then name two channels you rejected and why.
6. Messages: three core messages, each tied to a customer need, with the proof the business must be able to show.
7. Action plan: split the planning period into three phases with tasks, owner role and deliverable.
8. Riskiest assumptions: the two beliefs this plan depends on most, with a cheap test for each.

# Constraints
- Use no market-size figures, industry benchmarks or conversion rates unless I supplied them.
- Mark anything you had to guess with [ASSUMPTION].
- The plan must fit the stated budget and team. If the goal is out of reach with those resources, say so plainly and propose a smaller goal.
- No advice that would apply to any business, such as "build brand awareness" or "post consistently".

# Output format
Use the eight numbered headings. Put channels and the action plan in tables. Keep the whole response under 900 words.