Coaching Staff


Athletic Director

Bob Lim

Bob is a graduate of Coe College, where he majored in Physical Education / Athletic Training and played football. He has been involved in Athletic Administration for the last 20 years. 

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Assistant Athletic Director

Dee Susin

Dee Susin is an iconic member of Guerin Prep’s faculty and staff. She graduated from Mother Guerin in 1972 and pursued a three-sport athletic career at UIC. She entered the workforce with a degree in physical education and returned to work in athletics at Guerin almost immediately. During her tenure of 40 years at Guerin, Coach Susin has served as the physical education teacher, athletic director, volleyball, basketball, and soccer coach. Her experience and leadership has been crucial to the advancement of the athletic program.

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Dan Mustari

Coach Dan Mustari enters his 10th season as Head Coach of Guerin Prep Baseball. His accolades include back-to-back regional championships in 2014 and 2015. After his baseball career concluded, he continued to play in national competitive men’s softball tournaments. Coach Mustari is a passionate coach who instills basic fundamentals of the game, and most importantly, the love to compete. He is focused on rejuvenating Guerin Prep’s team and bringing veteran leadership back to the dugout. 

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Basketball - Boys

Josh Izzo

Coach Josh Izzo began his coaching career in 2010 as an assistant varsity coach at Joliet Catholic Academy when his brother, Jeremy Izzo, suddenly passed away due to complications with Marfan Syndrome. The following year, Coach Izzo was hired by coaching legend Joe Gura and became the head sophomore and head freshman coach over the next three years. In 2014, he joined his alma mater's staff under Illinois Hall of Fame coach John Bonk at Nazareth Academy, where he moved up the ranks from head freshman coach to eventually assistant varsity coach through 2018. Coach Izzo’s tenacity and love of the game stems from the same commitment exhibited by his brother, who worked under Coach Bill Self and Bruce Weber at University of Illinois. He is motivated to build Guerin Prep basketball into a championship contender over the next few seasons.

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Basketball - Girls

Barry Osborne

Coach Barry Osborne began his first season as the Head Girls Basketball Coach this fall. He owns 18 years of well-rounded coaching experience at the middle school, club, and high school levels. His last five years were spent at Zion-Benton High School, where he was the Head Freshman Girls Coach for two years and the Girls Varsity Assistant for three years. During his tenure at ZBTHS, Coach Osborne won a 4A regional and was a sectional finalist in 2015-16. Born and raised in Zion and a member of the ZB class of ’91, he now resides in Hoffman Estates with his family and is poised to bring back basketball tradition and excellence at Guerin Prep.

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Carlie Nissen

Coach Carlie Nissen enters her second season as Head Cheerleading Coach at Guerin Prep. As a 2014 alum of the school, Coach Nissen experienced firsthand the community and relationships that influenced her own life, and she’s excited to give the same commitment back to Guerin. During her time as a student at Guerin Prep, she participated on the cheer team and strengthened her own passion for coaching. As a young, energetic coach, Coach Nissen is focused on rebuilding the cheerleading program into one that is centered on hard work, competition, growth, and family. She is currently a science teacher to 6th, 7th, and 8th grade students within the Archdiocese of Chicago.

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Dance - Club and Competition

Maggie Ewig

Coach Maggie Ewig has been part of the athletic staff at Guerin Prep for 8 years, currently going into her 6th competition season with the Varsity Dance Team. Coach Ewig is a Guerin Prep alum of 2008, and she has over 20 years of dance and cheer experience. She attended Ripon College in Wisconsin, where she was a three-year captain of the dance team and won a National Title for “Open Jazz” at nationals in Minnesota. The continuous development, growth, and emphasis on faith and family with the team at Guerin Prep has been an ongoing point of pride for Coach Ewig over the years. An outstanding support system found in the group of GP alumni dancers and dance team parents has been cultivated and continues to extend itself. The 2017-2018 season included a team trip to Orlando for a performance at the Citrus Bowl, as well as an appearance at the IHSA State Finals. The Guerin Prep Dance Team is the first team in school history to qualify for State Competition. Coach Ewig is looking forward to many more successful seasons here with the outstanding student-athletes of Guerin Prep.

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Charlie Miserendino

Coach Charlie Miserendino begins his second year at Guerin Prep and first as the Head Varsity Football Coach. Last year as the Crusaders’ J.V. Coach, he led Guerin’s team to an undefeated 7-0 season. Prior to arriving at Guerin Prep, Coach Miserendino served 5 years as the Offensive Coordinator of the UYFL nationally ranked Shabbona Park Saints from Chicago, IL. He led the Saints to an overall 36-3 record while holding 4 Chicagoland Championships and 3 National Championships. His own football career began when he was Holy Cross’ starting QB in 2001. He began coaching shortly after as a teenager and has proven successful amongst his peers and the youth he coaches. Coach’s mission at Guerin Prep is to develop young men of character and integrity within a culture of excellence.

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Soccer - Girls and Boys

Rob Cianci

Coach Rob Cianci brings 18 years of coaching experience to Guerin Prep soccer, and the last 15 years have been as a head coach. Coach Cianci has served as the Head Boys and Girls Soccer Coach at Guerin Prep since 2013, where he focuses on skill development and team chemistry. He played soccer for Triton College in 1993 and is also currently the VP and Player Development Director at Hiawatha Soccer Club. Coach Cianci runs Guerin Prep soccer with the same passion that he exhibited as player who advanced to the Illinois Men’s Open Cup Championship with an illustrious career as a goal keeper.

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Volleyball - Girls and Boys

Tracy Devey

Coach Tracy Devey has spent the last 6 years at Guerin Prep building and developing the school’s volleyball program. Her passion, enthusiasm, and love for the game, coupled with 19 years of coaching and playing experience, strengthens the foundation and connection with boys and girls volleyball players at Guerin Prep. Coach Tracy has coached hundreds of volleyball players throughout her tenure that spans St. Patrick’s, Notre Dame for Girls, St. Juliana, St. Pricilla, and Dig It Volleyball Club, where she is Club Director. Her club program is a feeder for Guerin Prep, and the partnership fosters relationships with volleyball players of all youth ages to experience the community at Guerin Prep. Wife, mother, club director, and coach, Coach Tracy is poised to transform Guerin Prep into a contender for boys and girls volleyball.

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Alex Sullivan

Coach Alex Sullivan is a proud Guerin Prep alum who knows his way around the wrestling mat. During his career at Guerin Prep from 2008-2012, Coach Sullivan compiled 108 wins and was ranked 5th in the state of Illinois. He continued his success as Muskingum University where he played football, wrestled, and ran track and field. He enters his second season as Head Wrestling Coach and aims to grow a formidable team.

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