Larry Mac Duff is an American football

American football

American football is a sport played between two teams of eleven with the objective of scoring points by advancing the ball into the opposing team's end zone. Known in the United States simply as football, it may also be referred to informally as gridiron football. The ball can be advanced by...

 coach. He is currently the defensive coordinator for the Las Vegas

Las Vegas Locomotives

The Las Vegas Locomotives are a professional American football team based in Las Vegas, Nevada who play in the United Football League. The team plays its home games in Sam Boyd Stadium, home field for the University of Nevada, Las Vegas. Jim Fassel is the franchise's head coach, president, and...

 franchise of the United Football League.

Mac Duff served as co-defensive coordinator

Defensive coordinator

A defensive coordinator typically refers to a coach on a gridiron football team who is in charge of the defense. Generally, along with his offensive counterpart, he represents the second level of command structure after the head coach...

 for the Texas Longhorns

Texas Longhorns football

The Texas Longhorns football program is the intercollegiate football team representing The University of Texas at Austin, Austin, Texas. The team currently competes in the NCAA Football Bowl Subdivision as a member of the Big 12 Conference which is a Division I Bowl Subdivision of the National...

 during their 2007 season

2007 Texas Longhorn football team

The 2007 Texas Longhorn football team represented the University of Texas at Austin in the 2007 NCAA Division I FBS football season. The team was coached by Mack Brown, who received the 2005 Paul "Bear" Bryant Coach of the Year award...

, alongside Duane Akina

Duane Akina

Duane Akina is the assistant head coach and defensive backs coach for the Texas Longhorns football team.In 28 years of coaching football, Akina has coached three Thorpe Award winners in Darryll Lewis , Michael Huff , and Aaron Ross , as well as five finalists for the award, among them Chris...

. He was hired on January 7, 2007, to replace Gene Chizik

Gene Chizik

Eugene "Gene" Chizik is an American football coach and former player. He is currently the head coach of the Auburn University football team, a position he has held since the 2009 season. Chizik's 2010 Auburn Tigers football team completed a 14–0 season with a victory over Oregon in the BCS...

, who left Texas after two seasons to become the head coach at Iowa State University

Iowa State University

Iowa State University of Science and Technology, more commonly known as Iowa State University , is a public land-grant and space-grant research university located in Ames, Iowa, United States. Iowa State has produced astronauts, scientists, and Nobel and Pulitzer Prize winners, along with a host of...

. Mac Duff and Akina were responsible for the "Desert Swarm” defense at University of Arizona

University of Arizona

The University of Arizona is a land-grant and space-grant public institution of higher education and research located in Tucson, Arizona, United States. The University of Arizona was the first university in the state of Arizona, founded in 1885...

, which led the nation in scoring defense in 1992, allowing only 8.9 points per game, and finished second in total defense.

A former national assistant coach of the year while at Arizona, Mac Duff has helped mentor a Nagurski Trophy

Bronko Nagurski Trophy

The Bronko Nagurski Trophy has been awarded annually since 1993 to the collegiate American football player adjudged by the membership of the Football Writers Association of America to be the best defensively in the National Collegiate Athletic Association; the award is presented by the Charlotte...

 winner (Rob Waldrop

Rob Waldrop

Robert F. Waldrop is a former professional gridiron football defensive tackle who played in the National Football League and the Canadian Football League. He played college football with the Arizona Wildcats....

-1993), an Outland Trophy

Outland Trophy

The Outland Trophy is awarded to the best United States college football interior lineman by the Football Writers Association of America. It is named after John H. Outland. One of only a few players ever to be named All-America at two positions, Outland garnered consensus All-America honors in...

 winner (Rob Waldrop-1993), a Thorpe Award

Jim Thorpe Award

The Jim Thorpe Award, named in memory of multi-sport legend Jim Thorpe, has been awarded to the top defensive back in college football since 1986...

 winner (Darryll Lewis

Darryll Lewis

Darryll Lamont Lewis is an American retired NFL player, who played as corner back.After going to high school at Nogales High School in La Puente, California, he graduated in 1991 from the University of Arizona and was then drafted by the Houston Oilers in the second round of that years NFL Draft...

-1990), a Lombardi Award

Lombardi Award

The Rotary Lombardi Award is awarded annually to the best college football lineman or linebacker. The Lombardi Award program was approved by the Rotary Club in Houston in 1970 shortly after the death of Vince Lombardi. The committee outlined the criteria for eligibility for the award, which...

 finalist, five Pac-10 Defensive Players of the Year and an NCAA sack champion.

Following a disappointing 2007 season

2007 NCAA Division I FBS football season

The 2007 NCAA Division I FBS football season, or the college football season, began on August 30, 2007, progressed through the regular season and bowl season, and concluded with the Bowl Championship Series National Championship Game in New Orleans, Louisiana on January 7, 2008, where the top...

, Mac Duff was forced to resigned as co-defensive coordinator of the Longhorns. Texas had one of the worst defenses in the country, giving up an average of 374.8 yards per game.