How many assumptions should we actually track?
Start small. Five to ten assumptions is plenty for most annual plans. If you track too many, the calendar becomes noise and people stop checking it. Focus on the ones where being wrong would actually change what your team does. You can always add more as you get comfortable with the habit.
What if an assumption breaks halfway through the year — do we redo the whole plan?
Usually not. When an assumption breaks, you just update the parts of the plan that depended on it. Think of it like adjusting a recipe when you're out of one ingredient — you don't start over, you adapt. The goal is a living plan, not a perfect one written once and never touched.
Can Tindlo help us keep track of this across the team?
Yes, in a practical way. Tindlo lets your team place work items on a shared time axis in Day and Week views, so assumption check-ins can live alongside your actual work schedule. Everyone sees the same picture, which makes it easier to notice when a check-in date is coming up and act on it together.