<div class='quotetop'>QUOTE </div><div class='quotemain'></p> Magic Johnson thinks that if Stephon Marbury doesn't assume a leadership role, the Knicks are doomed.</p> </p> "Their success depends on Stephon Marbury," Johnson told the YES Network during an appearance on the memorabilia show, "Yankees-Steiner Memories of the Game." "Eddy Curry had a breakout season last year. Let's see if he can continue. Zach Randolph, whom I know, is a solid addition.</p> </p> "Their problem is getting all of the pieces to mesh together. Who is going to be the leader, who is going to say: 'Okay, we need you to do this.' Not Isiah, I am talking about the guy on the court. Who is the extension of the coach?" -- <font color="#000000">New York Daily News</font></p> </div></p>