Manager: "What if we don't spend enough time on planning, and we end up with plans that have to change?"
That's not what you should be worried about. What to worry about instead:
"What if we waste too much time on planning and we end up with worse plans together with people who are more resistant to change their plans?"
The more we try to prevent sucking at predicting, the more we will guarantee to suck at adapting.
You can't always solve the inability to predict, you can solve the inability to adapt.
Having to change your plans isn't necessarily a failure of planning, it may be a necessity for making your plans succeed.
The irony is that adaptation and evolution often seem to come less natural to us than planning and prediction, even though adaptation and evolution is the reason why we have a big brain that is able plan and predict.
If you try to prevent all mistakes and see everything coming before even starting, you’re going to be so stuck in your plans you will make even more mistakes.
This . . . “ adaptation and evolution is the reason why we have a big brain that is able plan and predict.”