Tom Mustac '03 M'09 enters his first season as interim head coach in 2023. Mustac was a member of four consecutive PSAC Championship teams at ESU (2000-03(, including the Warriors' 2000 NCAA DII Final Four team. He previously served as an assistant coach at ESU from 2009-14 under Jerry Sheska and Rob Berkowitz. He most recently served as Keystone Athletic's Director of Coaching.

"I am incredibly excited and humbled for the opportunity to come back home and serve as the interim head coach for men's soccer at East Stroudsburg University," said Mustac of his new appointment. ESU is a special place for my family and me. I met my wife Kelli at ESU and ESU is where it all began for me as a player and coach.  

"I would like to thank President Long and Director of Athletics Dr. Allen Snook for providing me this incredible opportunity," continued Mustac. "I look forward to continuing to build upon the successes of Coach Sheska and Coach Berkowitz. As a proud student-athlete, alumnus and previous assistant coach in the program, I have followed the team closely, and now that I have been afforded the opportunity to lead the program, it is truly a privilege. I look forward to working with the administration, alumni, players, and campus community towards creating champions in the classroom and on the field."

 Mustac was a three-time All-PSAC forward, registering 41 career goals in three seasons, which is tied for sixth all-time among Warriors, while his 106 points rank fifth in program history. He scored 13 goals during the 2000 season which saw the Warriors advance to the NCAA Semifinals, posting a hat trick in a 4-2 win over New Hampshire College at Eiler-Martin Stadium during the NCAA Quarterfinals. Mustac helped ESU to four PSAC Championships (2000-03) and a pair of regional championships (2000, 2002). He was named to the United Soccer Coaches All-Region First Team in 2001.

The Clifton, N.J. native earned a bachelor's degree in management/economics from ESU in 2004 and later earned a teaching certificate at William Paterson University in 2008. In 2010, he completed his master's degree in management and leadership in sport management from ESU. Mustac also currently holds the NSCAA Advanced National Coaching diploma.