Dr. Fred Baynes discusses sources of geotechnical risk in construction projects. He notes that cost or time overruns occur on 20-50% of projects. While ground conditions can pose risks, he argues that project staff are likely a greater source of risk if they do not properly understand the ground conditions. Different types of geotechnical risks include poor project management, contractual issues, unreasonable analytical models or design values, and unforeseen geological details. However, risks can be systematically managed through techniques like comprehensive site investigations and ensuring project staff have proper training and education to understand the site's geotechnical challenges.