Travis Lee Hafner ( ; born June 3, 1977) is an American former professional baseball player.
 He played in Major League Baseball as a designated hitter and first baseman.
 A left-handed hitter, Hafner played for the Texas Rangers, Cleveland Indians and New York Yankees.
 His nickname, "Pronk", was given to him by former teammate Bill Selby during spring training of 2001 when people sometimes referred to him as "The Project" and other times "Donkey" for the way he looked when running the bases.
 He has the most home runs for a player born in North Dakota, and tied the MLB-record for grand slams in one season with 6.
William Lamar Beane III (born March 29, 1962) is a former American professional baseball player and current front office executive.
 He is the Executive Vice President of Baseball Operations and minority owner of the Oakland Athletics of Major League Baseball (MLB).
 Prior to his front office career, he played in MLB as an outfielder between 1984 and 1989 for the New York Mets, Minnesota Twins, Detroit Tigers, and Oakland Athletics.
 He joined the Athletics front office as a scout in 1990.
 He was named general manager after the 1997 season, and promoted to executive vice president after the 2015 season.
D'Vontrey D'Wayne Richardson is an American professional baseball player playing for the Somerset Patriots in the Canadian-American Association of Professional Baseball league.
 Richardson spent the first five years of his professional baseball career in the Milwaukee Brewers minor league baseball system but was released by the team on April 2, 2015.
 He then signed with the Laredo Lemurs of the American Association of Independent Professional Baseball league on April 14, 2015.
 Richardson was acquired by New Jersey in August 2015.
Winfield Scott "Kid" Camp (December 8, 1869 – March 2, 1895) was an American professional baseball player born in New Albany, Ohio who played two season in Major League Baseball as a pitcher.
 He appeared in four games for the 1892 Pittsburgh Pirates and in three games for the 1894 Chicago Colts.
 He was the brother of infielder Lew Camp, who was his team mate in 1894.
Greater Talent Network Speakers Bureau (GTN) is an American speakers bureau based in New York.
 GTN is known for its roster of prominent clients, including authors Michael Lewis, P.J. O'Rourke and Jeffrey Toobin; actors Laura Linney and Danny Glover; musicians Paula Abdul and Kenny "Babyface" Edmonds; Navy SEALs Marcus Luttrell and Kevin Lacz; athletes Alex Rodriguez and Eli Manning; sports executives Billy Beane and Bob Myers; national security experts Raymond Kelly, Valerie Plame Wilson, and General Wesley Clark; and finance/technology disruptors Dan Schulman, and Danielle Weisberg and Carly Zakin, founders of theSkimm.
Edward Martin Herrmann (August 27, 1946 – December 22, 2013) was an American professional baseball player born in San Diego, California.
 He played in Major League Baseball as a catcher for the Chicago White Sox, the New York Yankees, the California Angels, the Houston Astros and the Montreal Expos from 1967 through 1978.
 He batted left and threw right handed.
Richard Higham (July 24, 1851 – March 18, 1905) was an American professional baseball player born in Ipswich, Suffolk, England.
 However, he is best known as the only umpire to be banned from baseball.
Shoki Kasahara (笠原 将生 , Kasahara Shōki ) (born January 9, 1991 in Fukuoka) is a Japanese professional baseball player who last played for the Yomiuri Giants in Japan's Nippon Professional Baseball.
 His younger brother Taiga is also a professional baseball player currently playing for Fukuoka SoftBank Hawks.
 His father Eiichi is a former professional baseball player.
Frank Joseph Torre (December 30, 1931 – September 13, 2014) was an American professional baseball player.
 He played in Major League Baseball as a first baseman.
 Torre, who batted and threw left-handed, played for the Milwaukee Braves (1956–60) and Philadelphia Phillies (1962–63).
 He was the older brother of Baseball Hall of Fame member Joe Torre, himself a former Major League Baseball player and longtime manager.
Patrick Henry Friel (June 11, 1860 – January 15, 1924) was an American professional baseball player from the early 1880s to the mid-1890s.
 Friel was born in Lewisburg, West Virginia, and his brother Bill Friel was also a professional baseball player.
 He began his minor league baseball career in 1883, and continued through the end of the 1896 season.
 During that timespan, he played for the notable minor league team, London Tecumsehs and two Major League Baseball teams, the Syracuse Stars in 1890 , and the Philadelphia Athletics in 1891 .
 Friel died at the age of 63 in Providence, Rhode Island, and is interred at St. Francis Cemetery in Pawtucket, Rhode Island.

Question: What is the name of the former American professional baseball player born in 1962, who was a client of Greater Talent Network?
Answer: Billy Beane