What Should Teams Improve First

I recently inherited a presentation from another team and noticed that the information was useful, but the deck no longer matched our company’s current direction. The colors, charts, and slide structure all felt disconnected from the message we wanted to share. While considering different ways to rebuild it, I started researching Presentation Design Agency Chicago options and became curious about the process. When refreshing an older business deck, which part should be improved first to make the biggest difference?