John A. “Jack” Zduriencik (; born January 11, 1951) is an American radio broadcaster and former professional baseball executive, scout, and player. He currently works as a radio host for KDKA-FM, which is affiliated with the Pittsburgh Pirates. He also served as the general manager of the Seattle Mariners from 2008 until 2015. Career Zduriencik began his career in professional baseball as a second baseman in the Chicago White Sox farm system. From 1973 to 1974, he spent time playing for both the Gulf Coast White Sox and the Appleton Foxes. Following his playing career, Zduriencik spent several years as a coach for both baseball and football. His coaching tour included stops at Austin Peay State University (1975–77), Clairton High School (PA, 1977–80), and Tarpon Springs High School (FL, 1980–82). Zduriencik returned to professional baseball in 1983. Successive roles involving scouting and player development comprised most of the next two-plus decades of his experience, as he spent time in the positions of: Area Scout, 1983–1989, New York Mets National Crosschecker, 1990 and 1994–1995, New York Mets Director of Scouting, 1991–1993, Pittsburgh Pirates Director of Minor League Operations, 1995–1998, New York Mets Special Assistant to the General Manager, 1998, New York Mets Director of International Operations, 1998–1999, Los Angeles Dodgers Director of Scouting, 1999–2006, Milwaukee Brewers Special Assistant to the General Manager, 2006–2008, Milwaukee Brewers Director of Amateur Scouting, 2006–2008. Milwaukee Brewers Special Assistant to the GM for Player Personnel, 2008, Milwaukee Brewers. Zduriencik was so successful in Milwaukee that many observers felt that he deserved a large part of the credit for the Brewers' eventual return to playoff contention in 2008. Brewers general manager Doug Melvin praised Zduriencik's efforts when he was quoted as saying: "No doubt about it, he deserves almost all the credit for the young players we have. The players he has drafted are making an impact at the big league level." In recognition of his success with the Brewers, Baseball America made Zduriencik the first non-GM to receive their Major League Executive of the Year Award in 2007. Seattle Mariners In October 2008, following a dismal season and the firing of GM Bill Bavasi, the Seattle Mariners announced the hiring of Zduriencik as the franchise's new general manager. At the time, the team was the first to have lost 100 games while shouldering a player payroll of more than $100 million, and it was reported by