"This has happened to me a few times. I successfully handled it by immediately conducting a work session with the designer to understand where they were coming from. Their concern was that the work was inadequate in their eyes and not representative of his quality of work. I didn't necessarily agree about the quality, so I went over the project's target metrics with them and showed them that we were on par. I then continued to explain that if we aim for perfection, we wouldn't only miss the deadline, we would also go over the budget. So, we agreed on a hard deadline. We still went past the due date, but only by two days. Even with the extra hours, we were able to stay within budget."