Celtic's leader: Garnett of Pierce

After the Celtic's success this year with a revamped team, the question after 1 year is who is the leader of the Celts now?

Garnett has been a dominant MVP type player who has probably been the most consistent of the big 3. Is this monster of a man the leader of the Celts?

Pierce is a hell of a player too, and not always the best player is the leader. He's carried the Celts and been their leader for so long, does seriority put him as the leader?

Ray Allen, not seen as the big guy, but he's always a shooter that can bring the team back into a game single-handedly. Is this talented sharp-shooter who converts the shots created by others the leader?

The knock on KG has been that he doesn't lead his team when it counts the most and so far in the Cavs series, that seems to still be true

Well he's doing moreso than any of the others though. Pierce is like 16/4/4 and Garnett is somewhere like 19/9/? (don't know the assists) in the playoffs.