For succession to take place effectively, succession leaders will need to be trained. Not just any other training, but they need to be trained well.
Well trained succession leaders are the ones who are able to take their entities to a whole new level. Well trained succession leaders, most of the time, supercede the achievements of their previous leaders.
Succession leaders who are well trained are able to help their entities to thrive even when the actual leaders are no more. And even pass on the baton successfully to the next generation because they deal effectively with the issues that confronts their entities and even help their entities to attain their goals and objectives at any given moment of time.
For entities to thrive continually, succession leaders must be well trained.