The 2013 Texas Longhorns football team (variously "Texas," "UT," the "Longhorns," or the "Horns") represented the University of Texas at Austin in the 2013 NCAA Division I FBS football season, as a member of the Big 12 Conference.
 The Longhorns were led by 16th-year head coach Mack Brown and played their home games at Darrell K Royal–Texas Memorial Stadium (DKR).
 The team was also coached by offensive coordinators Major Applewhite and Darrell Wyatt, as well as defensive coordinator Greg Robinson; Manny Diaz was defensive coordinator to begin the season but was fired following the team's second game against Brigham Young (BYU).
Dave Adolph (June 6, 1937 – February 12, 2017) was an American football coach.
 He served as defensive coordinator for the Cleveland Browns from 1986 to 1988.
 Prior to leaving the Browns in 1985 for the San Diego Chargers, he was the Browns' interim defensive coordinator in 1984.
 The promotion occurred after Marty Schottenheimer was elevated from the team's defensive coordinator position to head coach midway through the season.
 He joined Schottenheimer as his defensive coordinator for the Kansas City Chiefs from 1992 to 1994.
 Adolph was the defensive coordinator in four AFC championship games for three different NFL teams.
The 2016 Texas Longhorns football team, known variously as "Texas", "UT", the "Longhorns", or the "Horns", was a collegiate American football team representing the University of Texas at Austin as a member of the Big 12 Conference in the 2016 NCAA Division I FBS football season; the 2016 team was the 124th to represent the university in college football.
 The Longhorns were led by third-year head coach Charlie Strong with Sterlin Gilbert as the team's offensive coordinator and Vance Bedford as the team's defensive coordinator.
 The team played its home games at Darrell K Royal–Texas Memorial Stadium in Austin, Texas, where the team is based.
Todd Orlando (born 1972) is an American football coach and former player.
 He is currently the defensive coordinator and linebackers coach at The University of Texas at Austin.
 He previously was the defensive coordinator and linebackers coach at the University of Houston.
 Prior to coaching at Houston, he was the defensive coordinator at Utah State.
 Orlando has coached in 10 bowl games at four different schools.
A defensive coordinator is a member of the coaching staff of a gridiron football team who is in charge of the defense.
 Generally, along with the offensive coordinator, he represents the second level of command structure after the head coach.
 The defensive coordinator is generally in charge of managing all defensive players and assistant coaches, of developing a general defensive game plan, and of calling the plays for the defense during the game.
 At higher levels of football (college and professional), the defensive coordinator typically has a number of assistant coaches working under him who are responsible for the various defensive positions on the team (such as defensive line, linebackers, or defensive backs).
 You can look to the links under references for some of the best defensive coordinators in history according to Bleacher report.
 John Chavis (American football) and Jeremy Pruitt are among two of the great college defensive coordinators in recent history.
 There are Also many NFL greats that can be found in the references.
 People like Wade Phillips and Vic Fangio are among the NFL greats at defensive coordinator.
 Determining how good a defensive coordinator is has to do with a number of things such as defensive statistics, the type of attitude their players took to the field and also what other coaches and players had to say about them.
Vance Juano Bedford (born August 20, 1958) is an American football coach who last served as defensive coordinator at the University of Texas at Austin for head coach Charlie Strong.
 He was previously the defensive coordinator at the University of Louisville, where he also served under head coach Charlie Strong.
 He had served as defensive back coach at the University of Florida under Urban Meyer.
 He previously served as defensive backs coach under Lloyd Carr at the University of Michigan.
 He served in that same position for six seasons with the Chicago Bears, and also served two seasons as defensive coordinator at Oklahoma State University-Stillwater.
Mark Snyder (born December 30, 1964) is an American football coach who is the current linebackers coach and special teams coordinator for the Michigan State Spartans.
 He previously served as the defensive coordinator of the Texas A&M Aggies.
 He is the former head coach of the Marshall University Thundering Herd football team in Huntington, West Virginia.
 Snyder was the 28th head coach for the football squad after a four-year tenure as a defensive coordinator with Ohio State University.
The 2015 Texas Longhorns football team, known variously as "Texas", "UT", the "Longhorns", or the "Horns", was a collegiate American football team that represented the University of Texas at Austin as a member of the Big 12 Conference in the 2015 NCAA Division I FBS football season.
 The team played its home games at Darrell K Royal–Texas Memorial Stadium in Austin, Texas, where the team is based.
 The Longhorns were led by second-year head coach Charlie Strong.
 Shawn Watson and Joe Wickline ran the offense.
 Vance Bedford served as defensive coordinator.
 They finished the season 5–7, 4–5 in Big 12 play to finish in a three way tie for fifth place.
Jamie Bryant (born October 1, 1969) is an American football coach.
 He is the Special Team Coordinator at Colorado State University.
 He previously served the Defensive Coordinator  at Delaware State University and as defensive coordinator for the University of Houston.
 After coaching a defense that ranked near the bottom in scoring and yards allowed, head coach Tony Levine decided to part ways with his assistant.
 As linebackers coach for the 2011 season, Bryant was promoted to defensive coordinator under head coach Levine as of 2012.
Keith Patterson (born May 20, 1964) is an American football coach.
 He is defensive coordinator for the Arizona State Sun Devils football team.
 Patterson was previously the defensive coordinator and linebackers coach for the West Virginia Mountaineers.
 Before one season at West Virginia, Patterson was previously the defensive coordinator for the Arkansas State Red Wolves on January 4, 2012, only to resign from the position six weeks later to join the West Virginia coaching staff.
 Prior to his arrival at Arkansas State, Patterson was elevated from defensive coordinator to interim head coach following the resignation of Todd Graham on December 13, 2011, at Pittsburgh.

Question: Who served as the Texas Longhorns football team's defensive coordinator in 2016, and was previously served as the defensive coordinator at the University of Texas Austin?
Answer: Vance Bedford