Dave Aranda is in his first season as the Badgers' defensive coordinator after spending 2012 with UW head coach Gary Andersen at Utah State. As the defensive coordinator at USU he oversaw an Aggies defense that ranks eighth in the country in scoring defense, allowing just 15.4 points per game.
In addition to scoring defense, Utah State also ranked among the top 15 nationally in sacks (eighth), pass efficiency defense (10th), rush defense (12th) and total defense (15th). In the red zone, the Aggies were particularly effective, allowing opponents to score on just 63.6 percent of their trips inside the 20-yard line, a mark that tied them for third in the country in red zone defense. USU opponents scored just 13 TDs in 44 red zone opportunities (29.5 percent).
Prior to his season at Utah State, Aranda spent four years at Hawai`i, the last two as the Warriors' defensive coordinator after coaching UH's defensive line his first two years.
During the 2011 season at Hawai`i, Aranda's defense led the Western Athletic Conference and was tied for 15th in the NCAA Football Bowl Subdivision (FBS) in sacks with 35.
In 2010, Aranda's Hawai`i defense led the nation in turnovers caused (38), while ranking second in the nation in interceptions (23) and ninth in fumbles recovered (15), as well as tying the school record for most defensive touchdowns with five.
Prior to Hawai`i, Aranda coached at Delta State University in 2007, where he served as co-defensive coordinator and secondary coach. Following the season, he signed on to become Southern Utah's defensive coordinator for new head coach Ed Lamb and was on the job for one month before head coach Greg McMackin called and asked Aranda to join the Hawai`i staff.
In one year at Delta State, Aranda helped the school win the Gulf South Conference and lead NCAA Division II in pass efficiency defense, ranking second in total and scoring defense, and third in run defense.
Before Delta State, Aranda spent two years as the defensive coordinator and linebackers coach at his alma mater, California Lutheran, where the Kingsmen led the conference in scoring defense and total defense. It was his second go-around with California Lutheran after serving as an assistant from 1996-99, while finishing his degree.
From 2002-03, Aranda was the linebackers coach at the University of Houston. Prior to that, he was a graduate assistant at Texas Tech.
After he graduated from Redlands High School in California in 1994, numerous surgeries followed and ended his playing career. In 1995, he started his coaching resume at Redlands as an assistant coach. Aranda graduated from California Lutheran in 1999 with a bachelor's degree in philosophy. In 2002, he earned his master's degree in interdisciplinary studies at Texas Tech.
Aranda and his wife, Dione, have two daughters, Jaelyn and Jordyn, and a son, Ronin.