Adelphi University head men's soccer coach Gary Book has resigned to take a professional coaching role as Managing Director for Island FC, set to debut in the MLS NEXT Pro in 2027. Book led Adelphi since 2018, achieving a 77-39-19 record and securing the Northeast 10 Conference title and an East Region trophy in 2018. Under his guidance, the Panthers consistently made the NE10 tournament, producing 34 All-Conference selections. Athletic Director Danny McCabe praised Book's contributions and leadership during his tenure. Book expressed gratitude for his time at Adelphi and excitement for his next career challenge.

By the Numbers
  • 77 wins, 39 losses, 19 draws during Book's seven-year tenure.
  • Two consecutive seasons with double-digit victories (17 wins in 2018, 15 in 2019).
State of Play
  • Book's teams achieved consistent performance with nine wins each of the last five seasons.
  • A national search for a new head coach at Adelphi begins immediately.
What's Next

Island FC will prepare for its inaugural MLS NEXT Pro season, potentially increasing local interest in professional soccer on Long Island. Adelphi will be looking to find a successor who can maintain the momentum built by Book.

Bottom Line

Gary Book's departure marks a significant transition for Adelphi men's soccer, emphasizing the need for strong leadership to uphold the program's recent successes in a competitive landscape.