How flexible is PMBoK with regard to changes? Does PMBoK say that a project manager should resist any chage to the approved plans? Or does it encourages changes?
For example - one book (explaining the PMBoK processes) that I've read says that a project manager should minimize changes to the project. One of the reasons is that changes can demotivate the project team.
Are there any statements in PMBoK that either support or refute this?