Several things go into managing people effectively. As a project manager, you need to make sure that you have the people with the skill set required for the task. Not only will the right people need to be in the right place at the right time, but you must also equip them with the tools and knowledge they need. It is your job to make sure that they are fully aware of what is expected from them, and how long they have to do it.
Managing people in projects is a style of matrix management. You, the project manager, don’t necessarily manage each person directly. It is your job to manage the group leader, or senior member, over each group of employees. And from there, the hierarchy begins and orders are passed down.
Employees are not the only people resources that need management. Vendor staff and subcontractors are also in this group of project management. If you use outside vendors for equipment and/or materials, they will need to know what you need and the date it is due. This is the same as subcontractors. You have a project to get completed; this means that you need to move all the pieces around in order to get them in the right spot to get the job done.