Story Boards with No Script!?

I’m thinking about starting a storyboard for the new video, even without a script. I think it might help me work out some of the things in my head and communicate them to the marketing team. I still can’t imagine having an actual script for this project until we are ready to record the voice overs but I need to have an actual plan. I’m still waiting to hear about casting our star. It’s been narrowed down and I have been led to believe that I will be taking some responsibility for choosing who will be on set with us.