Question: The 1984 Oakland Athletics season drafted this future superstar, currently a bench coach in which league?

Context articles: 1984 Oakland Athletics season
1978 Oakland Athletics season
Steve Staggs
2014 Oakland Athletics season
1968 Oakland Athletics season
Roger Smithberg
2017 Oakland Athletics season
Mark McGwire
1980 Oakland Athletics season
Rob Thomson

The Oakland Athletics' 1984 season involved the A's finishing 4th in the American League West with a record of 77 wins and 85 losses.
 While the A's struggled for a third consecutive season, they staged a major coup by drafting future superstar Mark McGwire with the tenth overall pick of the 1984 Major League Baseball Draft.
 The season also marked the end of Rickey Henderson's first (of four) stints with the Athletics.
 His second stint would begin in 1989.
The 1978 Oakland Athletics season was the team's eleventh in Oakland, California.
 The team sought to rebound from its first losing season in a decade (a 63-99 result in 1977).
 Despite low expectations, the Athletics remained competitive for nearly three-quarters of the season.
 Despite posting a respectable 61-56 mark through 117 games, the Athletics collapsed in the season's final weeks; their 8-37 finish ensured a second consecutive season of fewer than 70 wins.
Stephen Robert Staggs (born May 6, 1951) is a former Major League Baseball second baseman who played for two seasons.
 He played 72 games for the Toronto Blue Jays during the 1977 Toronto Blue Jays season and 47 games for the Oakland Athletics during the 1978 Oakland Athletics season.
The 2014 Oakland Athletics season was the 46th for the franchise at O.co Coliseum, as well as the 114th in club history.
 The Athletics entered the season hoping to win a third consecutive American League West championship; to that end, the team made a number of key signings and trades during the 2013-14 MLB offseason.
 Notably, Athletics traded outfielder Michael Choice for left fielder Craig Gentry and pitcher Josh Lindblom; they also traded the promising but oft-injured Brett Anderson for reliever Drew Pomeranz.
 Additional trades brought in relievers Fernando Abad (acquired for John Wooten), Luke Gregerson (acquired for Seth Smith), and Jim Johnson (acquired for Jemile Weeks and David Freitas).
 In free agency, the Athletics signed former All-Star starting pitcher Scott Kazmir to a two-year deal.
 These moves, among others, sought to bolster the depth of team's starting pitching and bullpen.
The 1968 Oakland Athletics season was the franchise's 68th season and its first in Oakland, California.
 The team finished sixth in the American League with a record of 82 wins and 80 losses, placing them 21 games behind the eventual World Series champion Detroit Tigers.
 The Athletics' paid attendance for the season was 837,466.
Roger Craig Smithberg (born March 21, 1966) is a former Major League Baseball pitcher who played for two seasons.
 He pitched for the Oakland Athletics for 13 games during the 1993 Oakland Athletics season and two games during the 1994 Oakland Athletics season.
The 2017 Oakland Athletics season was the 50th for the Oakland Athletics franchise in Oakland (all at Oakland Coliseum), as well as the 117th in club history.
 The A's began the season on April 3 at home against Los Angeles Angels of Anaheim.
 They will finish the season at the Texas Rangers on October 1.
Mark David McGwire (born October 1, 1963), nicknamed Big Mac, is an American former professional baseball player and currently a bench coach in Major League Baseball (MLB).
 As a first baseman, his MLB career spanned from 1986 to 2001 while playing for the Oakland Athletics and the St. Louis Cardinals.
 He quickly grabbed media attention in 1987 as a rookie with the Athletics by hitting 33 home runs before the All-Star break, and would lead the major leagues in home runs that year with 49, setting the single-season rookie record.
 He appeared in six straight All-Star Games from 1987 to 1992 despite a brief career decline related to injuries.
 Another string of six consecutive All-Star appearances followed from 1995 to 2001.
 Each season from 1996 to 1999, he again led the major leagues in home runs.
The 1980 Oakland Athletics season was the team's thirteenth season in Oakland.
 The A's, under first-year manager Billy Martin, began the season with low expectations following their insipid 1979 campaign.
 Strong performances from pitchers Mike Norris, Matt Keough, and Rick Langford, along with the brilliant play of breakout star (and future Hall-of-Famer) Rickey Henderson, paved the way for a staggering 29-win increase over the previous year's output.
 The Athletics, only one year removed from baseball's worst record, swung to a second-place finish behind their 83-79 record.
Robert Lewis Thomson (born August 16, 1963) is a Canadian bench coach for the New York Yankees.
 He previously served as bench coach during the 2008 season, third base coach from 2009 - 2014, and returned to serving as bench coach in 2015.
 He has also served as Major League Field Coordinator for the organization.