As stated earlier, current project management environments are often considered to be of a multiple-project management nature where we can find a multiple-project manager leading multiple, simultaneous projects in addition to a single-project manager leading one project. For a multiple-project manager, leading multiple, simultaneous projects is rather different from leading one project at a time (Pennypacker & Dye, 2002). Instead of focusing on individual project's activities or a single-project management process, multiple-project managers have to share their focus among those of multiple projects, which makes it challenging (Ireland, 1997; Pennypacker & Dye, 2002). This led to our conceptual thinking that multiple-project managers may have to possess some competencies that are not necessary for single-project managers. Thus, we stated: