I built the forecast, and for two weeks it looked right. Then a big customer paid late and the whole thing drifted, and I wasn't sure whether to trust my numbers or the mess in front of me. I can put a forecast together, but making one that bends with reality instead of breaking is still beyond me.
More people experience this than they realize.
You can build a forecast, but making it hold up and adjust as reality changes is hard.
If this sounds familiar, the Library can help you find the bigger picture.