He joined baseball as the general counsel of the Oakland Athletics in 1981, worked his way up to general manager and built the 1989 World Series-winning team that also made the Fall Classic in 1988 and 1990. He left for a job in Major League Baseball in 1998 and served as the Padres' chief executive officer from 2005 through 2009. Most recently, he has returned to MLB, heading a special project in the Dominican Republic.
A protégé of John Hart, Byrnes worked in the front offices of the Indians, Rockies and Red Sox before getting his opportunity to run the Diamondbacks. Arizona advanced to the 2007 NLCS before things went south, and Byrnes received his walking papers this past July. Despite the results of the past few years, Byrnes carries an excellent reputation.
The Diamondbacks introduced him yesterday as their senior vice president of scouting and player development after he spent about three months as their interim GM.
Joe Garagiola Jr.
The son of the former player and broadcaster, Garagiola Jr. ran the expansion Diamondbacks and constructed the 2001 team that defeated the Yankees in the World Series. He has worked in MLB's office since 2006.
He is completing his ninth year as assistant general manager of the White Sox, a job in which GM Kenny Williams has given him much leeway. He graduated from the University of Michigan, the alma mater of Mets principal owner Fred Wilpon.
Still under the employ of the Texas Rangers, Hart served as the Rangers' GM from 2002 through 2005 and really made his name as the Indians' GM. From 1991 to 2001, he built a perennial contender that qualified for (and lost) the 1995 and 1997 World Series. He is arguably as well known for his legacy of cultivating young front-office officials (including Byrnes, Rockies GM Dan O'Dowd and Indians president Mark Shapiro) as his ability to create contenders.
A Rays senior vice president, Hunsicker worked for the Mets from 1988 through 1992. From 1995 to 2004, he was the GM of the Astros, during which time Houston qualified for the playoffs five times.
Now a senior adviser to Twins GM Bill Smith, Ryan ran the Twins from 1994 through 2007, putting together one of the game's best organizations. Worked as a Mets scout from 1980-85.
COMPILED BY KEN DAVIDOFF