First of, I would talk to the individual team member to make sure everything is going well. As a project manager, it is your duty to make sure each member of the team is in the right mind when coming to work. As far as taking absences or vacations, when you get hired you are a lotted a certain paid time off and I would make sure I speak to each person individually before bringing them into my team. And if life gets in the way, I will make sure I have someone who can do the same tasks during their absences. Life gets in the way but as a PM, it is your duty to fill in the gaps because you were given a certain project. This is what I believe makes a good project manager. I would resign the tasks and make sure those tasks are complete by someone else or myself. As a project manager, you will have to put in the extra time to make sure everything is complete. As a PM, you look at your overall project and its end goal. This means you put in the extra time when another team member is gone because it is your job. Its your project and if it does not get completed, you are person who will be answering to the clients. You will sit in the meetings and explain why a project is delayed. I would make sure every member in my team can keep up with their time management. This is one essential skill to complete a project.