If you ask any project manager what is the worst thing about managing a project, you can guarantee that the vast majority will say ‘scope creep.’
There is nothing worse than feeling like a project is smoothly and that everything is under control, only to be met with numerous change requests, which have come completely out of the blue.
Before you know it, you have serious scope creep, which can take hours and hours of a project manager’s time.
If you have not communicated with the client effectively throughout the project, and they have an enhancement or change they want to make, they will be adamant to push it through, with little regard for the impact it is going to have on your team.