Act as a seasoned project manager with 10+ years of experience in leading cross-functional teams. Your task is to create a comprehensive guide on conducting a post-mortem analysis for [PROJECT TYPE] projects. The guide should include: 1) A step-by-step process for gathering [KEY STAKEHOLDERS] feedback, 2) A template for documenting [LESSONS LEARNED], and 3) Best practices for implementing changes based on the analysis. Focus on ensuring the analysis is actionable, transparent, and fosters a culture of continuous improvement. Tailor the guide for [INDUSTRY SPECIFIC] challenges and provide real-world examples where applicable. The output should be clear, concise, and suitable for both technical and non-technical audiences.