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RAMS Coaches


Coaching Staff
(bios below)

Joe Proud - Head Coach

Dante DeCrescenzo -
Asst Varsity Coach

Chris Mandarino - Asst Coach

John DeVurnois - JV Coach

Todd Henry - JV Coach

Peter Ranieri - Asst Coach




Coach Bios

Coach Proud grew up just outside of Syracuse, NY, a region steeped in lacrosse tradition.  This is where the Iroquois (Haudenosaunee) have played lacrosse for hundreds of years.  He played at West Genesee High School, one of the most historic schools in the game, led by Coach Mike Messere, one of the top coaches in the history of the sport.  At WG, he served as a captain on the lacrosse team and was an all-league lacrosse, hockey and football player.  After graduation in 1989, he went to Duke University to study and play lacrosse. At Duke, he was named captain and All-American for a top-10 Division I program. 

Coach Proud has been coaching lacrosse for approximately 30 years, since his summers in high school and college.  After graduating from Duke, he spent 17 years coaching at the college level, including as a head coach at UC Berkeley (Cal) and Vassar College.  At Cal, he led the team to win the USILA National Championship in 1998, along with two WCLL Conference Championships in 1998 and 2000.  Cal also finished #1 in the final 2002 USILA poll.  He was named Coach of the Year for Cal Sport Clubs in 2001.

Proud was an assistant coach at Division I Cornell in 2003, when the Big Red won their first share of the Ivy League Title since 1987.  He was also an assistant coach at the Univ. of Vermont in 2004 and SUNY Plattsburgh in 2005, fulfilling a goal of coaching with one of his best lifelong friends.  He led USA West, a college all-star team to the United Kingdom and Czech Republic, winning the Prague Cup in 2001.  He has coached and directed countless camps and clinics.

Since moving to Philadelphia almost six years ago, Coach Proud has served as the head coach at Harriton High School.  While at Harriton, he has helped elevate the program in terms of culture and competitiveness.  The Rams had only made the District Playoffs once prior to Proud's arrival and have since qualified each of the past four years, earning their first playoff win in 2017.

The Harriton Lacrosse culture has also improved dramatically, as Harriton seeks to represent itself in a first class manner.  In 2014, Harriton received the Sportsmanship Award from the Keystone Lacrosse Officials Association as the program exhibiting the most outstanding sportsmanship in Southeast Pennsylvania.  In 2013,  the Rams received the Central League Sportsmanship Award.  Harriton Lacrosse graduates now regularly play lacrosse at the collegiate level, including current players at the NCAA Division I, II and III levels along with club programs.

Coach Proud was voted “Best High School Coach” (all sports) by readers in 2016 Main Line Today magazine.  He was also one of two coaches leading the 1st Annual Senior All-Star Game in 2016 put on by the Philadelphia Lacrosse Association and Eastern PA Lacrosse Coaches Association.  In 2017, he served on the committee naming the All-EPLCA and All-Americans from the region.

Additionally, Coach Proud runs his own coaching business, TCG Lacrosse, is the director of lacrosse for Ashbee Lacrosse and works with several national and regional level clubs, including Duke's, NXT, and Red Tail.

“Lacrosse has been a huge part of my life.  I look forward to sharing what I've learned with another generation of lacrosse players.” - Coach Joe Proud


Coach D. is the Assistant Coach for Harriton's Varsity Team. He has been playing and coaching lacrosse in the area for over 50 years.  Coach D. is a true local, he attended Lower Merion HS. Not only was he a lacrosse player there but he is also a member of the Lower Merion HS Hall of Fame, along with the rest of his undefeated, State Champion 1967 team.  He was Captain of the 1968 team and was a First Team All-State Attackman (unanimous selection) the year. After graduating, Coach D. went on to play midfield for Denison University and was a member of the 1969 league championship team. After college, he attended Penn Dental School and he and his wife, Mary-Beth Kelly, DMD (Orthodontist) founded Narberth Dental Group, where Dr. D. continues to practice general dentistry.  Lacrosse was always been close to his heart - he has coached many teams and leagues throughout the years: the Main Line Lacrosse Club, the Keystone Lacrosse Club, various Ashbee teams, and Varsity Assistant Coach at Woodlynde School.  Coach D. started the St. Joseph's Prep Lacrosse Team in 1996 and served as the Head Coach from 1996-2000.  He was named Catholic League Co-Coach of the Year in 1997. Coach D. has been a staple in the coaching staff at Harriton HS.  He was the Varsity Assistant Coach in 2011 and 2012, and returned to be the Varsity Assistant Coach again in 2016, 2017 and 2018. He is a mentor, not only to the players but also to the Coach as well. 

  • 1967: Midfielder LM High School Championship Team
  • 1968: Co-Captain LMFirst Team All State Attackman (Unanimous selection)
  • 1969-1971: Midfielder Denison University
  • 1969: League Championship Team
  • 1973: Head Coach Main Line Lacrosse Club
  • 1974-1975: Head Coach and Player Keystone Lacrosse Club
  • 1992-1993: Ashbee House League Coach
  • 1994: Asst. Coach Ashbee 5-6 Grade Team
  • 1995: Head Coach Ashbee 5-6 Grade Team
  • 1996-2000: Head Coach St. Joseph's Prep School, started the Prep's Lacrosse Team
  • 1997: Catholic League Co-Coach of the Year
  • 2004: Head Coach Ashbee 7-8 Grade B Team
  • 2009: Varsity Asst. Woodlynde School
  • 2011-2012: Varsity Asst. Harriton HSOffensive Coordinator
  • 2016-2018: Varsity Asst. Coach Harriton HS
  • 2016: Inducted into the LM Lacrosse Hall of Fame as a member of the 1967 Team

Coach Mandarino was a four-year starter at Lower Merion HS where he was a two time captain, All-State selection as a junior and was an All-American his senior year.  In 1999, he lead the LM team to the PSLA Championship.  He went on to play Division I Lacrosse at Loyola University in Maryland. During his freshman year, he played in all games taking the Greyhounds to compete in the NCAA tournament in both 2000 and 2001.  He began coaching lacrosse at Lower Merion HS in 2004.  He was an assistant coach in the Ashbee League, taking the U15 team to win the CCLA championship in 2012.  He has also coached at Springfield-Delco HS, Chestnut Hill Academy and now Harriton HS.