“Effective strategists are not people who distance themselves from the detail of a business but quite the opposite: they are the ones who immerse themselves in it, while being able to abstract the strategic messages from it.”
Top-Down and Bottom-Up Planning is a bidirectional planning. It is a combination of the approaches Top-Down and Bottom-Up. Planning is both top-down and bottom-up. Differences between both directions are continuously coordinated and attuned.