Priorities change quickly all the time in any job that you do. Sometimes you are focused and working on a project, but then you realize that there's another project that has an earlier date that you need to turn in or needs to be done by. And sometimes you just have to focus on that first. An example of this is when I was a teacher, I worked in teaching, sometimes I had to put down a project and I had to shift gears a little bit, finish another file, a student file because the parent wanted to have a meet with the teacher, because they wanted to have a meeting, so I had to work on that project before I could finish the other ones.