Joe Nattermann enters his third year as the Grenadiers assistant coach. This year, he moves over to the offensive side from being with the pitching staff the last two years. He will also work with the infielders and serve as recruiting coordinator. 

Last year, Coach Nattermann led a pitching staff that dominated the KIAC in ERA, opponent batting average, hits allowed, runs allowed, earned runs allowed, and walks per game. He also had three of the top four pitchers in ERA and innings pitched, three pitchers with under four runs allowed per game, and three of the top five in walks per game. Nattermann also led five of the top seven pitchers in wins, and the KIAC leader in saves, Shane Zoeller. The Grenadiers were also second in the conference in strikeouts, and third in innings pitched. Zoeller, Brad Nickles, and Adam Lipke were first-team all-conference last season, while Kris Eschman and Derek Decker earned second team honors under Nattermann.

This year, he takes over an offense that was second in the KIAC in hitting at .310 last season, led by returning outfielder, Ben Wyatt, who was among the league leaders in every offensive category in the KIAC. Nattermann will look to continue improving upon the strides that the team made last year which include leading the conference in hits, RBI, doubles, triples, and runs scored while finishing second in batting average, slugging percentage, and home runs. Seven hitters earned all-conference honors last season, including, Wyatt, and returning second-teamer's Drew Locasio and Randy Koch.

Prior to coming to IU Southeast, Nattermann was an assistant coach at Jeffersonville High School, under Al Rabe. He spent a majority of his time coaching outfielders and hitters, spending time with the freshman and JV teams for two years a piece, before finishing up with the varsity for the Red Devils. His time there included a 2004 Indiana State Final Four appearance as the only unranked team, and two Major League Baseball Draft Picks in 2004 (Robbie Grinestaff) and 2006 (PJ Thomas).

Nattermann was also an assistant coach for USAthletics 17 and under national travel team this past summer that traveled to Memphis, TN, Cocoa Beach, FL, and the Perfect Game Showcase in Atlanta, GA, among other tournaments. The team consisted of players from Indiana, Ohio, and Kentucky showcasing their talents to college coaches from around the country. He has also in the past has worked camps for Champions Baseball Academy, University of Kentucky, Purdue University, and Jeremy Sheetinger's Capital City Baseball Experience for the children of Frankfort, KY.

Nattermann received his Bachelor's degree from IU Southeast in General Studies in 2004. He is single and currently resides in Jeffersonville, IN.