Question: What position at the University of Georgia is currently held by the person who replaced Jack Del Rio for the Jacksonville Jaguars?
Context: Del Rio is a city in and the county seat of Val Verde County, Texas.  It is 152 miles west of San Antonio.  As of 2015, the city had a population of 40,549.  Del Rio is connected with Ciudad Acuña via the Lake Amistad Dam International Crossing and Del Río – Ciudad Acuña International Bridge.  Del Rio is also home to Laughlin Air Force Base, the busiest United States Air Force pilot training complex in the world. Enrique Del Rio (born May 28, 1966) is a Mexican "Luchador" "enmascarado", or masked professional wrestler who has worked for Lucha Libre AAA World Wide's (AAA) "Mini-Estrella" division since AAA was founded in 1992.  Del Rio currently works under the ring name Mini Psicosis, a smaller version of Psicosis II, and is a former AAA World Mini-Estrella Champion.  Until 2008 he worked as Jerrito Estrada, a smaller version of the wrestler Jerry Estrada.  As Estrada Del Rio has held the Mexican National Mini-Estrella Championship once, being the shortest reigning champion in the title's history.  Working in the Mini division does not automatically mean that he has dwarfism as several short wrestlers work in the "Mini" division, including Enrique Del Rio. The Gator Bowl was an American football stadium in Jacksonville, Florida.  Originally built in 1927, all but a small portion was razed in 1994 in preparation for the Jacksonville Jaguars' inaugural season; the reconstructed stadium became Jacksonville Municipal Stadium, now EverBank Field.  The old stadium and its replacement have hosted the Gator Bowl, a post-season college football bowl game now known as the Taxslayer Bowl, since its inception in 1946.  It also hosted the Florida–Georgia game, an annual college football rivalry game between the University of Florida and the University of Georgia, and was home to several professional sports teams, including the Jacksonville Sharks of the World Football League (WFL), the Jacksonville Tea Men soccer team, and the Jacksonville Bulls of the United States Football League. Paula Losoya Taylor (also Paula Losoya de Rivers, ?  - July 17, 1902) was one of the founders of San Felipe Del Rio (later, Del Rio) in Texas.  Her hacienda in Del Rio became a major employer in the region and also an important gathering spot for worship, discussion and more.  Taylor donated land to create a Catholic cemetery, a fort and schools in Del Rio. Del Rio International Airport (IATA: DRT, ICAO: KDRT, FAA LID: DRT) is two miles northwest of Del Rio, in Val Verde County, Texas.  It is used for general aviation, and being near Laughlin Air Force Base it is often used by USAF students.  On June 7, 2012 United Express operated by ExpressJet introduced jets nonstop to Houston, previously flown with turboprops.  United Express ended service to Del Rio in April 2013. But currently has non-stop service to Dallas/Fort Worth Airport with Texas Sky Airlines. Damon Gibson is a former professional football player of the National Football League.  He played four years in the league, 1998 with the Cincinnati Bengals 1999 NFL season with the Cleveland Browns 2001 with the Jacksonville Jaguars and the 2002 NFL season with both Jacksonville Jaguars & Atlanta Falcons.  He was released by the Jaguars two days after he fumbled a punt return that led to the Indianapolis Colts winning by 3 points.  He played for the Los Angeles Xtreme in the XFL in 2001. Melvin Tucker (born January 4, 1972) is an American football coach and former player.  He currently serves as the defensive coordinator at the University of Georgia.  Tucker was the interim head coach for the Jacksonville Jaguars of the National Football League (NFL) for five games in 2011.  He has worked as the defensive backs coach at the University of Alabama and as the defensive coordinator for the Chicago Bears of the NFL. The history of the Jacksonville Jaguars, an American football team in the National Football League (NFL), formally dates to November 30, 1993, when the NFL awarded Jacksonville, Florida the expansion franchise that became the Jacksonville Jaguars.  The Jaguars, along with the Carolina Panthers, started play in the 1995 NFL season as expansion teams. The Jacksonville Jaguars Radio Network is an 18-station radio network (10 AM stations and 8 FM stations plus 4 FM translators) based in the southeastern United States & is based in Jacksonville, Florida.  Beginning with the 2014 season, the network will originate at WJXL & WJXL-FM in Jacksonville Beach, Florida as well as WGNE-FM in Middleburg, Florida.  Network programming consists of Jacksonville Jaguars pre-season, regular season & post-season games as well as a coach's show. The Jacksonville Jaguars season was the franchise's 17th season in the National Football League and the 9th under head coach Jack Del Rio, who was fired on November 29 and replaced on an interim basis by defensive coordinator Mel Tucker.  The team had hoped to improve on their 8–8 record from 2010, but exceeded their loss total in Week 13, and were officially eliminated from postseason contention.  With the 10th pick in the 2011 NFL Draft, they selected quarterback Blaine Gabbert from the University of Missouri, and Gabbert would replace Luke McCown as the starting quarterback in Week 3.
Answer: defensive coordinator