A business case provides three options to respond to the business issue. Each option is someones preferred. It’s possible that there are tens of options, each with a different impact, cost and duration that will be some stakeholders preferred.
How can that be? Because perspective matters. Everyone else’s priorities are misguided.
When a business analyst arrives and says, “This is the best way forward,” they’re misguided. They actually mean, “This is best for some stakeholders and it might be best for you.”