This makes the “in between” rather routine.
Once you’ve analyzed your process and have designed a better way, take time before you begin the implementation to define your expectations as measurable outcomes.
Just like any other capital project, you should set meaningful metrics, such as return on investment or payback period, and custom measures like reduction in time to close the books.
Don’t “feel” good or bad about the outcome until you’ve stacked up actual results to your expectations.