Conversation so far:
What can you tell me Adam Gilchrist's walking and discipline?
It is unusual for batsmen to walk; to agree that they have been dismissed and leave the field of play without waiting for an umpire's decision. Gilchrist reignited this debate.
What did Adam Gilchrist say in regards to his stance on batsmen?
What happened in the 2003 world cup match with Adam Gilchrist?
Gilchrist walked during a high-profile match, the 2003 World Cup semi-final against Sri Lanka, after the umpire ruled him to be not out.
Did anyone oppose Adam Gilchrist's decision to walk?
In 2004, New Zealand captain Stephen Fleming accused Gilchrist of conducting a walking crusade when Craig McMillan refused to walk after Gilchrist had caught him off an edge.
Did any rules change based on Adam Gilchrist's protesting?

Question: What did the former players debate?
Self-contained rewrite: What did the former players debate about walking and discipline?