The tree is dynamic and can start somewhere else for any organisation, for example with an internal awareness campaign against discrimination (communication). This means that your plan(t) does not have to start at the roots.
For a sustainable plan(t), a sturdy root frame is of course recommended. Anyone who wants impactful results should ensure a sound general policy in the long term that permeates internal and external communication and the other branches.
Finally, the tree needs nutrients to continue to live. Securing is therefor crucial for a plan(t) to be sustainable.