73 In developing a project plan, a project manager is creating the work package in the work breakdown structure. The project manager is concerned that the time estimates received by a subcontractor are not accurate. The project manager calls the subcontractor to verify the estimates. Which risk category includes this risk? Technical Organizational External Project management 75 A company conducts nearly 200 projects each year. In all of their projects for the past four years, they have conducted lessons learned reviews. What is the main purpose for conducting all of these reviews? To provide Project Management Institute (PMI) certified employees with opportunities to earn 12 professional development units (PDU) To determine employee ratings for the annual performance review process To teach current and future project teams what works well and what may not work well To reduce liability insurance costs