When the "fact of the matter" is such : There is surely more than one way to get X done and you are definitely not the only one who can do that, then knowing how to play a role, to complement the overall process is more important than knowing how to do a specific job / task.
Somebody needs to play that specific role which is very important but no player is indispensable.
As has been said, there is no indispensable man in a business, company. In larger context, not even in any country in this world.
China had moved on after Deng XiaoPeng and is still moving forward. Singapore will still continue to grow even without Mr Lee Kuan Yew at the helm
