Question: Who was the 6th commissioner of the athletic conference that the Stephen F. Austin Lumberjacks baseball team is part of?

Context paragraphs:
Jaycees Field: Jaycees Field is a baseball venue in Nacogdoches, Texas, United States.  It is home to the Stephen F. Austin Lumberjacks baseball team of the NCAA Division I Southland Conference.  The field has a capacity of 1,000 spectators.

SFA Softball Field: SFA Softball Field is the home stadium for the Division I (NCAA) Stephen F. Austin Ladyjacks softball team.  The stadium is located next to Jaycees Field, home of the Stephen F. Austin Lumberjacks baseball team, in Nacogdoches, Texas.  The stadium has seating for 750 fans.  Stephen F. Austin State University has a nineteen (19) year exclusive use lease on the stadium with the City of Nacogdoches, Texas starting in 2010.  The university made several improvements to the preexisting city softball field including a new playing surface, a warning track, a Daktronics electronic scoreboard, new dugouts, windscreens, a new grandstand, an expanded press box, and bullpens.

Stephen F. Austin Lumberjacks baseball: The Stephen F. Austin Lumberjacks baseball team is a varsity intercollegiate athletic team of Stephen F. Austin State University in Nacogdoches, Texas, United States.  The team is a member of the Southland Conference, which is part of the National Collegiate Athletic Association's Division I.  The team plays its home games at Jaycees Field in Nacogdoches, Texas.  The Lumberjacks are coached by Johnny Cardenas.

Stephen F. Austin Lumberjacks football: The Stephen F. Austin Lumberjacks football program is the intercollegiate American football team for Stephen F. Austin State University located in the U.S. state of Texas.  The team competes in the NCAA Division I Football Championship Subdivision (FCS) and are members of the Southland Conference.  Stephen F. Austin's first football team was fielded in 1923.  The team plays its home games at the 14,575 seat Homer Bryce Stadium in Nacogdoches, Texas.  SFA's football team earned a berth into the FCS playoffs in 2009, which was the first for the university since 1995.  The team also earned a playoff berth in 2010, marking the first time in the program's history that the team had reached the playoffs in consecutive seasons.  The 2010 season also marked the first time that the school had won an outright conference championship since 1989.  Stephen F. Austin's only bowl appearance was the 1973 Poultry Bowl, in which the team defeated Gardner-Webb 31-10 in Gainesville, Georgia.

2016 Stephen F. Austin Lumberjacks football team: The 2016 Stephen F. Austin Lumberjacks football team represented Stephen F. Austin State University in the 2016 NCAA Division I FCS football season.  The Lumberjacks were led by third year head coach Clint Conque and played their home games at Homer Bryce Stadium.  They were members of the Southland Conference.  They finished the season 5–6, 4–5 in Southland play to finish in sixth place.

2014 Stephen F. Austin Lumberjacks football team: The 2014 Stephen F. Austin Lumberjacks football team represented Stephen F. Austin State University in the 2014 NCAA Division I FCS football season.  The Lumberjacks were led by eighth year head coach J. C. Harper and played their home games at Homer Bryce Stadium.  They are members of the Southland Conference.  The Lumberjacks finished the season 8–5 overall and 5–3 in conference play to finish in a tie for third place.  They received an at-large bid to the FCS Playoffs where they lost in the first round playoff to Northern Iowa 10–44.

Southland Conference: The Southland Conference is a collegiate athletic conference which operates in the South Central United States (specifically Texas, Louisiana, and Arkansas).  It participates in the NCAA's Division I for all sports; for football, it participates in the Division I Football Championship Subdivision (FCS).  The Southland sponsors 17 sports, nine for women and eight for men, and is governed by a presidential Board of Directors and an Advisory Council of athletic and academic administrators.  Tom Burnett was named the Southland's sixth commissioner on Dec. 23, 2002.  From 1996 to 2002, for football only, the Southland Conference was known as the Southland Football League.

Stephen F. Austin Lumberjacks and Ladyjacks: The Stephen F. Austin Lumberjacks and Ladyjacks are composed of 15 teams representing Stephen F. Austin State University in intercollegiate athletics, including men and women's basketball, cross country, golf, and track and field.  Men's sports include baseball and football.  Women's sports include volleyball, tennis, soccer, softball, and bowling.  The Lumberjacks/Ladyjacks are members of the Southland Conference and the football team competes in the NCAA Division I Football Championship Subdivision (FCS).

2014 Stephen F. Austin Lumberjacks baseball team: The 2014 Stephen F. Austin Lumberjacks baseball team represents Stephen F. Austin State University in the 2014 intercollegiate baseball season.  Stephen F. Austin competes in Division I of the National Collegiate Athletic Association (NCAA) as a member of the Southland Conference.  The Lumberjacks play home games at Jaycees Field in Nacogdoches, Texas.  Sixth year head coach Johnny Cardenas leads the Lumberjacks, a former assistant coach with the Lumberjacks from 2005 through 2008.

2013 Stephen F. Austin Lumberjacks football team: The 2013 Stephen F. Austin Lumberjacks football team represented Stephen F. Austin State University in the 2013 NCAA Division I FCS football season.  The Lumberjacks were led by seventh year head coach J. C. Harper and played their home games at Homer Bryce Stadium.  They were a member of the Southland Conference.  They finished the season 3–9, 1–6 in Southland play to finish in a tie for seventh place.

Supporting paragraphs: Stephen F. Austin Lumberjacks baseball Southland Conference
Answer: Tom Burnett