Baum, Stephen H. What made jack welch Jack Welch : how ordinary people become extraordinary leaders. - 276p.(hbk) 24cm. Include index ISBN: 978-0-307-33720-7 Subjects--Personal Names: Welch, Jack, 1935- Subjects--Topical Terms: Leadership.Executive ability. Dewey Class. No.: 658.4092 B347 2007