"This has happened to me a few times. I successfully handled it by immediately conducting a work session with the team member to understand where they were coming from. Their concern was that the work was inadequate and not representative of their usual quality. 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 actually on par. They continued to explain that they believed they were on the verge of coming up with something very impactful. So, we compromised and agreed to assess after three more working days. I'm all for innovation, but I also understood that the impact of this specific deliverable was not more important than the overall goal we set to achieve for the project."