Labor (human resources) is often the most costly and unpredictable resource required by projects. Skilled labor and knowledge workers are far from being fungible resources because individual skill sets, personal resources, and temperaments differ significantly. This is a serious problem for project planners. The problem becomes more complex in the context of global markets. Often, projects are staffed from multiple, international locations. As a project manager, what approach or approaches will you employ if you are responsible to manage a project that will be implemented in multiple international locations? What issues are likely to come up and how would you handle them? What are the things that you would consider when hiring team members that will work on this type of project?