Joe Nemith III joined the Wittenberg football coaching staff in April 2023 as defensive passing game coordinator and defensive backs coach.

Nemith came to Wittenberg after spending three years at Capital University in Columbus as an assistant coach leading the linebackers and special teams and the team's strength and conditioning program. During that time, he coached an All-Ohio Athletic Conference First Team and Honorable Mention linebacker and oversaw a special teams unit that finished first in the OAC in punt return average.

Nemith's coaching career began in 1998 when he joined the University of Akron as its defensive graduate assistant. After two seasons with the Zips, he made the jump to Tri-State University (now Trine University) to become its defensive coordinator. In two seasons, his defenses twice placed inside the nation's top 25 in different statistical categories. In 2001, the Thunder finished 8-3, were co-champions of the Mid-State Football Association (MSFA) and a national playoff qualifier. He was also named the MSFA Assistant Coach of the Year following the 2000 season.

Nemith then spent two seasons at Robert Morris University (Pa.), and again his defenses found their place in the national rankings. In 2002, the Colonials ranked seventh in total defense (261.6 yards per game) and first in pass defense, allowing just 90.9 yards per contest. The following year, they finished as the seventh-best run defense after allowing just 116.1 yards per game.

In 2004, Nemith helped start the Ohio Dominican University football program. From 2004 to 2009, he served as the associate head coach, defensive coordinator and was in charge of the Panthers' defensive backs. In 2007, Nemith helped build a defense that posted a plus-15 turnover margin, which ranked sixth in the country. Behind that performance, ODU went on to win a conference championship and earn a national playoff qualifying spot.

Nemith then stayed in the Columbus area but took over as the co-defensive coordinator at Otterbein University for three years (2010-12). In his first year, he coached All-American Dominic Jones to the Lee Tressel Award for most outstanding defensive back and All-OAC pick Anthony Korpieski to lead the league in interceptions.

In 2013, Nemith made the jump to the NCAA Division II level as Ashland University's defensive backs and special teams coach. Two years into his stay, the Eagles won the 2015 GLIAC Championship and qualified for the postseason. The following season, Ashland led the league in pass defense (186.0 ypg) and was third in the nation in touchdown passes allowed (11).
 
After spending the 2017 season at Baldwin Wallace as its linebackers coach and special teams coordinator, Nemith went to Urbana University as its co-defensive coordinator and defensive backs coach where he spent two seasons elevating the Blue Knights' defense to the top of the Mountain East Conference.

Over the course of his coaching career, Nemith has overseen the selection of 51 all-conference players, eight All-Americans, two conference rookie of the year picks, and one Cliff Harris Award nominee to recognize the best small college defensive back.

He has also coached four players who have gone on to play professionally, including defensive backs Dwight Smith (NFL), Robb Butler (NFL), Donzale Ashley (NFL, CFL) and Dominic Jones (AFL).

Nemith III is a 1997 graduate of Malone College, where he graduated with a bachelor's degree in communications with a public relations concentration and a minor in English.