A flow chart diagram titled 'System with 4 parts' showing 'Part 1', 'Part 2', and 'Part 3' as 'Super important', with an arrow pointing down to 'Part 4' which is 'Changing'.
A mackinsey style slide that shows a system with 4 parts, the fist three are. Lt super important and don't change while the 4th part is less important and is changing Mehr sehen