Examples of the Best answers
Use an example where you were not able to meet a deadline due to outside factors.
For instance, there was a big project that my team was working on, and I had split up the work among some members and myself. During that time, one member of the team had to leave due to their spouse getting a position in another city. He left at a critical time, and I had to re-assign his duties to someone else. I make the new person work to speed with the progression of the project and due to this, I was not able to complete it on time. We were still able to complete the project a few days after the deadline even with the change in the team member.