Conversation so far:
How did Kumar Sangakkara become captain?
In February 2009, Mahela Jayawardene announced that he would step down from captaincy. Kumar Sangakkara succeeded Jayawardene as Sri Lanka's captain.

Question: What made him want to step down?
Self-contained rewrite: What made Mahela Jayawardene want to step down from captaincy of the Sri Lanka cricket team?