Rugby league Immortal Bob Fulton won't stay at Manly beyond his current contract should the Sea Eagles and the club legend agree his makeover on the northern beaches is complete, executive chairman Scott Penn says.

A day after chief executive Tim Cleary – whose public feud with Bob Fulton was laid bare in March by Fairfax Media – walked out on the club after officially being in the job for just five months, Penn said Fulton won't stay beyond his existing deal as the club's head of football should there be no need.

Fulton is signed until the end of 2018, but after Cleary – the former school principal who had Penn's public backing despite sacking Fulton's daughter Kristie in an overhaul of Manly's front office – sensationally quit on Friday, questions have emerged over Fulton's future at the club.

"He has a contract until the end of next year," Penn said. "He might think that's the right time, but we haven't had that discussion. That might happen at some time down the track.