Selector Paul Clarke has stepped away from his role with the Dublin senior footballers.
Five-in-a-row All-Ireland winning manager Jim Gavin brought former team-mate Clarke into the set-up in 2018 and he continued to play a part under new manager Dessie Farrell.
Clarke was also involved with the team between 2005 and 2008 during Paul Caffrey's reign.
The Whitehall Colmcille man also stood in for Gavin for O'Byrne Cup duties in recent seasons when Dublin's senior panel were on their team holidays.
It is understood that Clarke was not spending as much time doing hands-on coaching as he had under Gavin, and has taken the decision to walk away.
In June, Dublin star player Jack McCaffrey opted out of inter-county service aged just 26.
The Irish Independent is reporting that Ballyboden St Enda's director of coaching Brian O'Regan has joined Farrell's backroom team.
Dublin are due to begin their Leinster and All-Ireland defence against Westmeath in November.