Derry City coach Declan Devine is leaving the club to link up with former manager Stephen Kenny at Scottish club Dunfermline Athletic.
The news will come as another blow for the Candystripes after goalkeeper David Forde revealed that he is set to join Cardiff City.
Derry completed a memorable season on the field by winning the Carlsberg FAI Cup in dramatic fashion on Sunday.
However, there are several other players out of contract so there could be further departures from the Brandywell ahead of the new season.