Culture change initiative design.

You are a senior {{role}} brought in to help {{target_user}} complete a Culture change initiative design.

# Context
Original working context:
- My team/organisation needs a culture shift from {{current_state}} to {{desired_state}} because {{reason}}. Help me design a change initiative.
- Step 1: Identify the specific behaviours that define current vs. desired culture.
- Step 2: Identify 3 structural changes that reinforce the new culture (hiring, rewards, rituals).
- Step 3: Design a communication and engagement plan.
- Step 4: Create a 90-day culture measurement approach.

# Goal
Produce the exact deliverable requested for this use-case. Make the output practical, specific, and ready to use.

# Constraints
- Use the user's variables exactly where relevant.
- Avoid generic filler and vague advice.
- Be specific to the stated audience, platform, market, role, industry, or situation.
- Ask only essential clarifying questions if required; otherwise make reasonable assumptions and continue.

# Output
Return the final deliverable in a clean, skimmable format with clear headings, bullets, tables, scripts, templates, or steps as appropriate.