Question: In what conference is the University that had a coach born on September 9th, 1960?

Context paragraphs:
2016 Oklahoma Sooners football team: The 2016 Oklahoma Sooners football team represented the University of Oklahoma in the 2016 NCAA Division I FBS football season, the 122nd season of Sooner football.  The team was led by two-time Walter Camp Coach of the Year Award winner, Bob Stoops, in his 18th season as head coach.  They played their home games at Gaylord Family Oklahoma Memorial Stadium in Norman, Oklahoma.  They are a charter member of the Big 12 Conference.

Randy Rahe: Randy Michael Rahe (born (1960--) 12, 1960 ) is an American college basketball coach and the current head men's basketball coach at Weber State University.  Randy Rahe was hired on March 23, 2006, as the 9th coach in Weber State's 47-year history.  Rahe came to WSU from the University of Utah where he was an assistant under former coach Ray Giacoletti.  Rahe was also an assistant under Stew Morrill for 13 seasons, first at Colorado State University and then at Utah State University.  Rahe posted a record of 54–17 as a high school coach in Colorado from 1985 to 1988.  He has also been an assistant coach at Colorado College, Colorado and Denver.

Gary Ward (baseball coach): Gary Ward (born September 9, 1940) is an American former baseball coach.  He was the head baseball coach at Oklahoma State University from 1978 to 1996, compiling a record of 953–313–1.  Ward won 17 Big Eight Conference championships at OSU, including 16 in a row from 1980 to 1996.  He led his team to 18 40-win seasons, and 12 times his teams finished in the top 10.  He later became the head baseball coach at New Mexico State University.  During his tenure, he became only the 24th coach in college baseball history to gain 1,000 career wins.

2012–13 Pepperdine Waves women's basketball team: The 2012–13 Pepperdine Waves women's basketball team represented Pepperdine University in the 2012–13 college basketball season.  The Waves, members of the West Coast Conference, were led by head coach Julie Rousseau, in her 9th and final season at the school.  The Waves played their home games at the Firestone Fieldhouse on the university campus in Malibu, California.  They finished the season 5-23, 2-14 in conference, and were 9th place in the conference standings.  They lost in the first round of the WCC Tournament to conclude their season and the coaching career of Rousseau at Pepperdine.  Rousseau would resign on April 3, 2013 after compiling a 123-144 record at Pepperdine with 3 NCAA Tournament appearances.

Prince Alexander of Battenberg Square: Prince Alexander I Square (Bulgarian: площад „Княз Александър I“, "Ploshtad "Knyaz Aleksandar I"" ), often called simply Battenberg Square (площад „Батенберг“) is the largest square of Sofia, the capital of Bulgaria.  It is named after Alexander Joseph of Battenberg (Alexander I of Bulgaria), the first prince of modern Bulgaria.  During the Communist rule of Bulgaria, the square was named September 9th Square, after a coup on September 9, 1944, made the country a Communist state.  Before 1944, the square was known as Tsar's Square because the former royal palace, now the National Art Gallery was located there.  It was the site of the Georgi Dimitrov Mausoleum from 1949 until 1999.  It is arguably the most suitable place in Sofia for major open-air concerts such as the concert series ""Opera on the Square"", demonstrations, parades (including the military parade on St George's Day) and other large-scale events.

Josh Holliday: Josh Holliday (born September 14, 1976) is an American college baseball coach and former professional player in Minor League Baseball.  Currently the head coach of the Oklahoma State Cowboys baseball team, he was hired to this position prior to the 2013 season.  In 2014, Holliday was the Big 12 Conference Baseball Coach of the Year as OSU claimed the conference regular season championship.  Hollidays' Cowboys pulled OSU a little Cowboy baseball tradition out of the fire and faced Oklahoma on the final weekend of 2017.  The team was in danger of missing out of the postseason for the 1st time in Hollidays tenure at Oklahoma State.  The Cowboys swept the instate rival Oklahoma Sooners (#2 seed going into region play) to claim the last and final spot as the 8th seed in the BigXII Championship.  The Cowboys went back to their traditionion and won just the 2nd Big 12 tournament in schools rich baseball history.  The Cowboys won 16 straight Big 8 tournaments before the formation of the Big12.  The Cowboys became the 1st eight seed (last seed) to win the conference championship and by doing so Holliday got his team in the NCAA postseason for the 5th time in his 5 years at the school.  The season was full of injuries from top to bottom Holliday and is associated Head Coach and current (2016) assistant coach of the year Rob Walton put together a pitching staff that was nothing short of magical.  The Cowboys luck would run out as the were sent to the Arkansas Regional and went 0-2 losing game one to Regional champions Missouri State Bears on a two out bottom of the 9th walk off HR.  Garrett Benge hit for the cycle for Hollidays Cowboys but it wasn't enough.  Garrett McCain would be named 1st team all-American the 25th in Cowboys history he would one of five current Cowboys drafted in 2017 preceded by 11 from the 2016 College World Series club.  Giving Holliday 16 in 2 years.  The Cowboys went on the end of the year run the had seen them lose six games in a row and face being the 1st Oklahoma State team to finish under .500 in 40 years.The Cowboys finished 30-27 on the year.  The 6-5 victory of the Texas Longhorns would be Hollidays' 200th victory as the head man of Oklahoma State.

Bob Stoops: Robert Anthony Stoops (born September 9, 1960) is a former American college football coach.  He is the former head football coach at the University of Oklahoma, a position he held from 1999 until he announced his retirement June 7, 2017.  During the 2000 season, Stoops led the Sooners to an Orange Bowl victory and a national championship.

Michael Harrison (politician): Michael Harrison (born September 9, 1958) is a Tennessee politician and the member of the Tennessee House of Representatives representing the 9th district, which is composed of Hancock County and part of Hawkins County.  He was elected to the 103rd and 104th General Assembly and currently serves as a member of the Republican Party.  He is on the Finance, Ways and Means Committee, the Health and Human Resource Committee, the Health Care Facilities Subcommittee, the Budget Subcommittee, and the Joint TennCare Oversight Committee.  Michael Harrison attended Walters State Community College, went to East Tennessee State University, and works in healthcare.

Johnny Logan (basketball): John Arnold "Johnny" Logan (January 1, 1921 – September 16, 1977) was an American professional basketball player and coach born in Richmond, Indiana.  A 6'2" guard who played at Indiana University, Logan played for four seasons with the now-defunct St. Louis Bombers, and a fifth season with the Tri-Cities Blackhawks.  While with the Blackhawks, he served three games as an interim player-coach.

Willie Heston: William Martin "Willie" Heston (September 9, 1878 – September 9, 1963) was an American football player and coach.  He played halfback at San Jose State University and the University of Michigan.  Heston was the head football coach for Drake University in 1905 and North Carolina College of Agriculture and Mechanic Arts, now North Carolina State University, in 1906.  After he retired from coaching, he practiced law and served as a state court judge in Michigan.  Heston was elected to the College Football Hall of Fame in 1954.  He was selected by the Football Writers Association of America as the halfback for its all-time team for the first 50 years of the sport.  University of Michigan coach Fielding H. Yost rated him as the greatest player of all-time.

Supporting paragraphs: 2016 Oklahoma Sooners football team Bob Stoops
Answer: the Big 12 Conference