Warriors CEO Wayne Scurrah has announced skills coach Kevin Campion will leave the club at the end of the year.
Scurrah said family reasons were behind Campion's decision to return to Queensland.
"It's unexpected and we're disappointed to lose him but we respect Kevin's wishes," said Scurrah.
"He has done a tremendous job since returning to the club to join the coaching staff last year. He's held in such regard here."
Campion said he was sad to be leaving the club.
"I loved my time as a player with the Warriors (in 2001 and 2002) and I've enjoyed the coaching experience as well but I need to go home," he said.
The 34-year-old returned to Ericsson Stadium last year to join former Warriors team-mate Ivan Cleary on the club's coaching staff.
Cleary, who officially began his career as Warriors head coach on Tuesday, was sad to learn Campion would be leaving.
"It caught me by surprise," he said.
"I was looking forward to working with him again but I understand why he had to make his decision."
Campion will continue in his role until the Warriors finish their pre-Christmas training programme on December 16.
Cleary said he would be giving consideration to a replacement in the coming weeks.