In a career spanning 34 years, Edward Breen has faced many difficult situations, perhaps none as challenging as his most recent assignment — CEO of Tyco International — which he took on when the company was facing bankruptcy. In an interview with Michael Useem , director of Wharton’s Center for Leadership and Change Management , Breen, who just stepped down from Tyco, talks about the importance of knowing when and how to make the “bold, big decisions,” mentoring and always raising your hand for assignments, among other topics. An edited transcript of the conversation follows. Michael Useem: We’re going to talk about your rather amazing career. You worked at General Instruments. You were the president of Motorola. For the past 10 years, you have run Tyco. I’m going to begin in the middle. Tyco got into a lot of trouble with malfeasance at the top. You were recruited to come in as chief executive at the end of July 2002.…