David LiSooey is an assistant coach of the varsity boys lacrosse team at Morristown Beard School.

Coach LiSooey has more than a decade of experience coaching high school lacrosse in New jersey.  LiSooey most recently served as head coach at Union Catholic Regional HS, overseeing all aspects of a first-year varsity program.

Prior to his time at Union Catholic, LiSooey spent eight years as the head lacrosse coach of a co-op involving Union Catholic and the Wardlaw-Hartridge School, and as an assistant and later head coach of Wardlaw-Hartridge.  During this tenure, Coach LiSooey mentored a member of the Chinese national U19 team and a HS Academic All-American.  LiSooey also spent time as assistant and defensive coordinator at Jackson Memorial High School and Robbinsville HS.

Coach LiSooey played football and lacrosse at Franklin and Marshall College, where he graduated with a bachelor's degree in Chemistry.  Later he founded Team 135, a men's master team participating in local and national tournaments.  He has been an active member of NJILOA since 2007.