Start with one forecast and a clean file
Do not start with three forecasts. Start with one clean file.
Finance teams are being asked for faster projections. The ones that stick are not the ones that buy a tool first. They pick one problem, get 24 months of numbers that actually match, and treat the model as a second opinion, not a crystal ball.
Good first jobs: demand for one product line, cash from the last two years of transactions, revenue by segment, or variance flags before close. Score the idea on value and effort. High and low is the start. Three initiatives at once is how this dies in month two.
The ugly test
Can you pull 24 months of clean transactions for that use case in under an hour? If not, data cleanup is the project. A model can help you find the mess faster. A person still has to say what "clean" means here.
Scenario work is where this pays. Three budget versions that go stale by the next board pack are not planning. A model that can rerun "materials up 12%" or "top customer down 20%" in minutes is. You still name the drivers. The model just does the arithmetic at the speed of the question.
Ninety days, not a launch party
Days 1-30: pick the case, confirm the data, pick the tool. Days 31-60: small set, small group. Days 61-90: compare to the old forecast, write down what worked, decide if you scale. That is not slow. That is how you avoid a two-quarter abandonment.
Define the score before you build: accuracy vs the old baseline, hours per cycle, material misses caught early. Those are numbers a CFO already understands.
This is a planning habit that uses software. The hard parts are agreeing which forecast matters, trusting it enough to act, and using it next month. One problem. Clean data. Tight pilot. Then the next one.