Irish players have been reacting with shock and surprise to the news that international coach Paul Revington is to step down from his post.
Dutch-based defender Conor Harte responded via Twitter: "To say I'm gutted is an understatement."
The South African, recently declared World Coach of the Year, is expected to stay at the helm for another three months.
This will allow him to say some goodbyes at the Celtic Cup tournament in Lisburn at the end of next month.
However, the IHA will have to have a new person in command for the world-ranking Champions Challenge event in Argentina at the end of the summer.
Revington has told his current employers that he has no immediate alternative job plans, but intends to remain in coaching.
"He has been massive for Irish hockey," said Monsktown and Ireland striker Gareth Watkins.
The unexpected announcement comes a couple of months after his charges narrowly failed to qualify for the Olympic Games, losing to a last-minute goal from Korea.
After his three years in the Irish job, Revington may be tempted by offers from the lucrative national league in Holland.