If you want to your garden to flower throughout the year, you need to plant a variety of plants. If you want to harvest vegetables all year round, you need to plant a variety of vegetable plants.
Change happens over time and a variety of approaches are needed for the long term. One size doesn’t fit all.
And while you of course can go to the supermarket and buy flowers and vegetables throughout the year that others grew, they don’t sell change. Change needs to grow at home, in the organisation’s cultural ‘soil’. It can be influenced by others, ideas, processes, and people can be imported in. But the change has to happen in the organisation itself.