Olympic Idioms 

pass the torch

Explanation : Before each Olympic games, the torch with the Olympic flame is passed from runner to runner as it travels from Athens, Greece to the site of the next Olympics.  Runners 'pass the torch' in a relay, and in conversational English you may say that you 'pass the torch' when a project or idea is handed on to another person.

e.g.   He is passing the torch of leadership to the next president.