Cassell, 34, joins Cricket Ireland as it seeks ICC Test status and after helping South Australia develop one of the best bowling units in the competition.
“This move is a new challenge and an opportunity for me with a new group of people in a new country,” he said.
“It seems right for my young family at the moment and we’re really excited about moving to Dublin for the next few years.
“It’s a very considered decision and it wasn’t easy to leave the SACA and to leave such a good bowling group.”
The former Victorian and South Australian quick has played a major role in implementing a bowling program that drove the Redbacks to two consecutive Sheffield Shield finals, and says he’ll be keenly tracking their progress from afar.
Over the five years as a coach in South Australia, Cassell has helped leg-spinner Adam Zampa become a regular for Australia’s ODI and T20 sides, and has also worked closely with Joe Mennie who made his Test debut last season. He has also enjoyed working with Chadd Sayers, who he says can’t be far away from making his Test debut.
The typically humble Cassell, who last played for the Redbacks in 2011 before genetic back problems cut his career short, refused to take all the credit for the success of the young bowling group he has assembled.
“I’m certainly proud of the boys and they should take a lot of the credit as bowlers and the people they’re becoming,” he said.
“They’ve really matured over the years and it’s great to see them getting the rewards for all the hard work they’ve put in.”
Cassell will spend the first few weeks of the upcoming pre-season with the Redbacks before commencing his role in Ireland in July.