Drinkwitz will serve as the Broncos' tight ends coach, Brown will serve as Boise State's secondary coach, Pitman will serve as the Broncos' Head Strength and Conditioning Coach and Murray will serve as Boise State's Assistant Director of Player Personnel.
Drinkwitz has spent the last two seasons as Arkansas State's running backs coach, and added co-offensive coordinator responsibilities in 2013.
"Eliah is a great, young offensive mind," Harsin said. "He called plays for us at Arkansas State during a stretch where we won four out of five games. He is an outstanding, detailed recruiter, and I love his passion and knowledge of the game. He is ahead of his time."
In his first season with the Red Wolves, the team went 10-3 and won the Sun Belt Conference Championship. A-State defeated No. 25 Kent State in the GoDaddy.com Bowl, the school's first victory over a top-25 team since joining the Football Bowl Subdivision in 2012.
ASU ranked No. 23 nationally in rushing offense in 2012, averaging 206.2 yards per game. The Red Wolves had seven games with more than 200 rushing yards, and led the league with 31 rushing touchdowns.
Prior to joining A-State, Drinkwitz spent 2010 and 2011 as an offensive graduate assistant with Auburn. The Tigers went 14-0 in 2010, winning the Southeastern Conference Championship and, ultimately, the national title.
He also spent four seasons coaching at Springdale High School (2006-09), including one season as offensive line coach and run game coordinator, before serving as offensive coordinator the final three seasons.
He was an assistant coach at Alma High School in 2005, where he started his coaching career as a volunteer assistant while attending college (2001-03).
He earned his bachelor's degree in education from Arkansas Tech in 2004, graduating magna cum laude and serving as student body president.
Brown, a 2006 graduate of Boise State, joins his alma mater after working under Harsin in 2013 as Arkansas State's cornerbacks coach and recruiting coordinator.
"I'm excited to get Julius back to Boise State," Harsin said. "He did a great job for me at Arkansas State this past year, he's a phenomenal recruiter and I'm excited about his progress as a coach. Having also played in the secondary for the Broncos, I think he will be very good for the guys he's coaching."
Brown, who also coached cornerbacks at Troy in 2012, was a three-year starter and four-year letterwinner for the Broncos from 2000-03, earning honorable mention All-Western Athletic Conference honors after leading the league in passes defended as a senior. He was a member of the 2002 and 2003 WAC Championship teams, and helped lead the Broncos to victories in 2002 Crucial.com Humanitarian Bowl and the 2003 Plains Capital Fort Worth Bowl.
He then worked as an offensive graduate assistant at Boise State from 2007-08, and as the Broncos' Director of Player Personnel from 2009-11.
As Director of Player Personnel, Brown worked as the on-campus recruiting coordinator, organizing official and unofficial visits for recruits and their families. He also oversaw the recruiting and scholarship budgets, assisted the director of football operations with summer camps, served as liaison with the department's academic support team and represented the football program at campus and community events.
Pitman, a certified strength and conditioning specialist by the National Strength and Conditioning Association (NSCA), previously spent time with the Broncos from 2000-06, and is a 1993 graduate of Boise State.
"Jeff has been part of the foundation of who we are today," Harsin said. "He knows the history of Boise State football, having both worked here and played here. I'm excited to bring him back home, and getting back to work with him as our leader in the weight room."
Pitman worked with Harsin at Arkansas State in 2013 as the Director of Strength and Conditioning, and was at Western Carolina from 2010-12 as the Strength and Conditioning Coordinator.
A three-year letterwinner for the Broncos from 1990-92, Pitman initially walked on to Boise State in 1988 before earning a scholarship and starting at center for two years. He was a member of the Broncos' 1990 team that finished 10-4 and reached the semifinals of the NCAA Division I-AA Playoffs.
He was recognized as an NSCA Strength and Conditioning All-American in 1992, one of just 10 Broncos in school history to win the award at the time.
He graduated from Boise State with a degree in health promotion in 1993, and then worked as a graduate assistant strength and conditioning coach at Minnesota. He earned his master's in education from Minnesota in 1995.
Certified as a level one club coach by USA Weightlifting in 1994, Pitman took his first full-time position as a collegiate strength coach at Montana State (1995-97), working with football, women's skiing and women's track and field.
He then worked at San Jose State from 1997-99, supervising the training programs for all of the Spartans' varsity sports, before joining the Broncos.
Pitman was the head strength and conditioning coach at Boise State from 2000-06, and then worked with the football program at Colorado, while also overseeing the speed, strength and conditioning needs for each of the Buffaloes' varsity programs.
Murray, who played defensive back for Boise State from 2007-11, will assist the Director of Player Personnel in recruiting efforts, including the coordination of on-campus visits for prospective student-athletes.
"Antwon has a tremendous passion for Boise State, and he's going to do a great job here," Harsin said. "I know he's glad to be back at Boise State, and as an up-and-comer in this profession, I know I'm excited to have him as a member of our staff."
Murray served as Arkansas State's Director of Player Personnel in 2013, coordinating on-campus recruiting visits, overseeing social media efforts for the program and serving as the team's academic liaison.
He was the recipient of the Bronco Ambassador Award at the team's annual banquet following the conclusion of the 2011 regular season, and graduated with a degree in communications in 2011.
Upon graduation, Murray worked as a high school history teacher in his hometown of Lakeland, Fla., before working for Harsin at Arkansas State.