Wayne Bennett has tossed up Anthony Milford as a potential solution but knows Adam Reynolds' South Sydney departure will be felt at the Rabbitohs.
Sunday's 14-12 loss to Penrith was Reynolds' last game after 10 years at the club he barracked for as a child, the in-demand halfback squeezed out and set to be the face of Brisbane's rebuild under Kevin Walters.
Reynolds and his teammates thanked their supporters on the Gold Coast on Monday, the captain in fine form as he addressed the fans, ripping off his club polo shirt and hurling it into the crowd below.
Souths will also lose centre Dane Gagai, who appeared healthy on Monday despite concerns over a knee injury suffered in the final, to Newcastle, and Jaydn Su'a to St George Illawarra.
Bennett is also leaving Souths after coaching at the famous club for the past three seasons.
He will return to Brisbane to live next year and, while he says he is yet to decide his future, has been strongly linked to the NRL's expansion team set to be based in southeast Queensland from 2023.
Souths' grand final appearance followed back-to-back preliminary final losses under Bennett since his messy exit from the Broncos.
As he prepares to move north, Bennett said Souths will "change a bit and there will be some challenges" for his current assistant and coach-in-waiting Jason Demetriou.
"The big issue will be Adam and replacing him," Bennett warned.
Thrust into fullback after Latrell Mitchell's suspension, Blake Taaffe showed he could be the man to fill Reynolds' boots, while Lachlan Elias is another.
But he said 2022 recruit Milford would come in handy.
The playmaker took Bennett's Brisbane to within seconds of the 2015 title but has struggled to live up to that form since and was this season slowly phased out by new coach Walters.
"Anthony Milford is going there and he will play better football than he has in the past few years," Bennett said.
"But Jason will do a good job. He's been a wonderful servant to the game and me personally.
"He has been a wonderful co-coach and done a great job. He has a wonderful staff and Ben (Hornby) will be staying with him.
"Jason is an extremely competent coach so I don't think there will be many ripples at all."
The narrow loss was Bennett's second consecutive grand final defeat to follow seven straight triumphs.
He'll return north after three seasons of near misses unable to boast of another, but "with huge, real appreciation of what South Sydney is all about".
"My type of club really," he said.
"They are honest, hard working, a great group of kids and young men. Responsible and working-class Australians. I love them."
Australian Associated Press