In Winning in Both Leagues J. Frank Cashen looks back over his twenty-five-year career in baseball. Best known as the general manager of the New York Mets during their remaking and rise to glory in the 1980s, Cashen fills the pages with lively stories from his baseball tenure during the last half of the twentieth century. His career included a stint with the Baltimore Orioles of the late '60s and '70s, working with manager Earl Weaver and the great teams of the early '70s, including such players as Jim Palmer, Frank Robinson, and Brooks Robinson. Later, tapped by Mets owner Nelson Doubleday Jr. to bring the Mets to the pinnacle of Major League Baseball, Cashen, with the rise of superstars Darryl Strawberry and Dwight Gooden, led the Mets to the thrilling come-from-behind victory over the Boston Red Sox leading to the World Series championship in 1986.

Winning in Both Leagues also chronicles the drafting of Billy Beane, who would later be the focus of the New York Times bestseller Moneyball. Cashen, who was a central figure in the fierce competition with New York Yankees owner George Steinbrenner, excelled at building winning ball clubs and remains one of only two general managers ever to win a World Series in both leagues.

J. Frank Cashen was, at various times, executive vice president, chief operating officer, and general manager of the Baltimore Orioles in the '60s and '70s and the New York Mets from 1980 to 1991. His teams won three world championships in five World Series appearances and were runners up in three other league championship playoffs. He passed away on June 30, 2014.

Billy Beane is the vice president and general manager of the Oakland Athletics.