There is a common misinformed conjecture that large programs are managed just like a military operation. Both these concepts are wrong - dead wrong.
Here's a great briefing on this topic. You'll find there are topics about managing in the presence of uncertainty and the need to make estimates to assess the outcomes of your decisions.
Commando code from go_oh
After this, read this, ask anyone suggesting you can make decisions in presence of uncertainty without estimates and have them show you how that conjecture does not violate managerial finance and Microeconomics principles? To date there is ZERO example of how this can happen beyond personal anecdotes that are untested outside of those personal anecdotes