A playoff team needs the guy that can pull the rabbit out of the hat when the game is on the line and a loss is likely. The 60's Celtics had a number of guys that could do that - John Havlicek, Sam Jones, Don Nelson. The 70's had Jo Jo White - the 80's relied on Larry Bird - and later, Paul Pierce was often that guy. The current crop of Celtics has Kyrie Irving in that role, and his magic act is tailor-made for the post season.