If want a really good look into your business and how you are operating, I highly recommend the LPMA Breakthrough Business Program.
It gets you to really look at all areas of your business and business structure and it is a deep dive into the effectiveness of your operations.
I have been working through this program all year and putting necessary structures in place, tweaking strategies and making the business more robust. Position descriptions are about the positions and not the people that are in them, that allows for changes. Feedback highlights areas where staff (and management) need training.
If you have not done so already - make this a goal for 2022