Joslyn was named the head coach of the Chicago State baseball program in August of 2012. The 2015 campaign will be his third as Chicago State skipper. Joslyn brought in his first recruiting class in 2014 and the 15-member group made an immediate impact. The 2014 club raised the team batting average 68 points, on base percentage 70 points and the slugging percentage 94 points from the previous season. Chicago States fielding percentage in 2014 (.960) was the teams best since 1996. After posting the programs best team ERA in 2013 (5.99) since 1994, the 2014 club improved that total to a 5.79 mark. It gave the Cougars their first back-to-back years of sub 6.00 ERAs since 1991. Individually, catcher Robert Swenson threw out the most would be base stealers in the nation (36).  Jordan Stroschein recorded 66 hits, the fifth highest single-season total in program history. Eric Hall turned in a 3.45 ERA, the ninth best single season total in CSU history. Infielder Mattingly Romanin was named to the All-Western Athletic Conference Second Team and Julian Russell picked up a WAC Hitter of the Week honor. The Cougars finished with 17 wins in 2014, the most for the program in 14 years. Chicago State swept both games from city rival UIC, a feat last accomplished by a CSU team in 1988. In 2013, Joslyn guided the Cougars to a fourth place finish in the Great West Conference during his first campaign as the CSU skipper. Thanks to wins over three-time defending champion Utah Valley and Texas-Pan American in the GWC Tournament the Cougars put together CSUs best conference tournament performance since 1999. Romanin earned All-GWC First Team, All-GWC Tournament Team and GWC Player of the Week honors in 2013. Sophomore Andrew Wellwerts earned GWC Tournament Team honors. Before arriving at Chicago State, Joslyn spent 10 years on the staff at Northern Illinois University under Ed Mathey. As NIUs main assistant, Joslyn earned the title of associate head coach in 2008. Joslyns efforts at NIU helped the Huskies bring in three nationally ranked recruiting classes to DeKalb. NIU racked up a 70-33 record against Illinois in-state Division I opponents during Joslyns 10 seasons in the dugout. All told, Joslyn helped the Huskies to 255 victories and five Mid-American Conference Tournament appearances. NIUs 2003 and 2007 clubs each won a school-record 34 games. Under the supervision of Joslyn, the Huskies set the two highest fielding percentage marks in NIUs Division I history. In 2011, NIU committed the fewest errors (74) than any other previous team during Joslyns time at NIU. Due in large part to his defense and his bat, shortstop Alex Jones was a quarterfinalist for the Brooks Wallace Player of the Year Award in 2011. Nearly every graduating outfielder tutored by Joslyn at Northern Illinois signed a professional baseball contract, including Jeff Thomas in 2008 who led the Huskies with a .350 batting average. Also in 2008, Guerin Prep product shortstop Bobby Stevens was drafted by the Baltimore Orioles in the 16th round of the MLB Amateur Draft. Off the field, NIUs Troy White was named one of 30 finalists for the 2012 Lowes Senior CLASS Award. The honor is annually given to an NCAA Division I senior with notable achievements in four areas of excellence community, classroom, character and competition. White, a Whitney Young graduate, was also an All-MAC performer at NIU. Joslyn served as an assistant for the Quincy Gems of the Central Illinois Collegiate League during the summer of 2005 and helped the team capture the league championship. The Oswego, Ill., native began his college baseball coaching career at his alma mater, North Central College, where he first worked with Mathey in 1996 and immediately helped guide the Cardinals to a conference title. Two years later, NCC generated a 28-15-1 record, a runner-up finish at the NCAA Central Regional and a No. 15 final national ranking by Collegiate Baseball.