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MapleZone names Dionne as new Lacrosse Director; Costello as General Manager

Friday, 22nd January 2021

Categories Boy's/Men's, Club, Girl's/Women's, Posted 1/22/21 – From Press Release

 Maplezone Sports Institute has announced that former Duke standout Josh Dionne has been named its new Lacrosse Director and Sean Costello will be joining the company as the new General Manager.

Josh Dionne

Costello will have overall responsibility for all company activities with a focus on facility, event, and rental operations management. Chris Pincin will remain as the Director of Baseball Tournaments. Josh Dionne will be joining the company as the new Lacrosse Director.

In this new role, Dionne will manage all lacrosse related programs including the Rising Sons boy’s and Greene Turtle girl’s lacrosse teams. Both have extensive and excellent experience in their respective roles.

Josh Dionne

Dionne’s resume as a player speaks for itself. He also has an impressive coaching background specifically on the women’s collegiate level and in educating young lacrosse players in skill development and navigating the recruiting process. He considers himself a self-taught player and is extremely excited to bring his training knowledge to MSI.

As a player, Dionne helped lead Duke to back-to-back NCAA championships in 2013 and 2014, as well as 4 Final Four appearances from 2011-2014.  He was a two-time USILA All-American attacker with the Blue Devils who tallied 162 points on 140 goals and 22 assists in 78 career games. He was selected 18th overall in the 2014 Major League Lacrosse Draft by the Charlotte Hounds.

As a coach, Dionne was most recently an assistant with the University of North Carolina (UNC) Women’s Lacrosse Team, particularly with the Tar Heel offense and midfield. While at UNC, the Tar Heel offense set new school records for most goals, assists and points in a season, while Katie Hoeg, Jamie Ortega, Marie McCool, and Ela Hazar posted four of the top six scoring totals in UNC history. 

Prior to coaching at UNC, Dionne served as an assistant women’s lacrosse coach at the United States Naval Academy for two seasons. While on staff at Navy, Dionne was able to learn from Cindy Timchal, the winningest head coach in NCAA women’s lacrosse history.  He helped Loren Generi become the first player in NCAA history to accumulate at least 300 points, 200 goals and 400 draw controls in a career.

As a business operator, Dionne most recently started and ran his own company with fellow Duke great Luke Duprey, Prepstar Lacrosse, to train and educate boys and girls players to improve their skill sets, game play and recruiting profiles to ultimately succeed at various colleges and private boarding schools.

Dionne was born and raised in Merrimack, NH. He later attended Avon Old Farms (CT) where he was selected as an Under Armour All-American and participated for the North team in the 2010 game.

Sean Costello

Since 2016, Costello has been the Associate Director of Athletics at The Shipley School.  During his time there he has been involved as an Associate Director of Admissions, Assistant Camp Director, Physical Education teacher and coached many high school and middle school athletic teams.

Costello started as a physical education teacher and coach in 2006 following completion of his Post Baccalaureate program in Physical Education and Health from West Chester University.  As head coach he led his varsity soccer and basketball teams to over 200 wins and won four state championships and six league titles.

From 2014-2016 he was an assistant women’s basketball coach at Appalachian State University in Boone, North Carolina, and Belmont University in Nashville.  He helped App State to their first Sun Belt Conference appearance and Belmont to an OVC championship and NCAA tournament appearance.

Costello returned home in 2016 to become Associate Director of Athletics and Admissions at The Shipley School.  He was responsible for creating a plan of process and recruitment of high-level student athletes, coordinating between the athletic and admissions office.  He also led programming for prospective student athletes in Admissions Open House based around the athletic experience at Shipley.

Costello has extensive experience in youth sports through his time working at UK Elite and The Football Club of Philadelphia (currently Steel Soccer). During that time, he has served as Assistant Director of Coaching and Financial Officer, along with coaching several teams both regionally and internationally.  He was responsible for allocating financial aid, collecting dues, scheduling fields, and coordinating camps.

He is a 2004 graduate of The University of Scranton, where he graduated with a BA in Communications.  He started his collegiate career at The University of Rhode Island, where he was a member of the 2000 Atlantic 10 Champion Men’s Soccer Team.  He finished his career at Scranton was 2003 MVP, captain, and 2nd Team All Freedom Conference. In 2019, Costello completed his Masters in Strategic Leadership from Rosemont College with an Entrepreneurship Certification.


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