The document discusses various challenges that can cause project failure if not properly managed. It discusses issues like scope creep, poor communication, inadequate resources, unclear requirements, unrealistic timelines, unplanned risks, undefined deliverables, lack of planning, and lack of project management skills and education. For each challenge, it outlines example problems, common causes, and recommendations on how to properly manage the project to avoid these issues, such as defining clear requirements, following a change management process, establishing a communication plan, ensuring proper resourcing, conducting risk analysis, and taking the time for thorough planning and estimation.