Some difficulty that can arise when a project manager changes is reduced productivity. When there is a new project manager, they may expect certain things for the project, which may take longer to complete. This can cause a lot of misunderstanding between coworkers and can cause employees to spend more time on a specific task because they may not be used to it. Every project manager also has a different style of leading, so they may expect different things from each person, whether it's more or less work. As a project manager, you should expect some resistance to changes. The employees working with you on the project have been accustomed to the same routine for some time and it would take a little more time and work to change the routine. As the project manager, you should also understand that the people working with you may know more about the project and before going into the project you should be as well-versed as possible. It's important to understand the project and its goals so that the entire team can be successful. It is also important to build trust between you and the rest of the team so that they can come to you for help and support.