Harley made a record 267 appearances for Glasgow in his 12 years at the club..
The Scotland international has now signed for French Pro D2 side Carcassonne.
Former Glasgow hooker Scott Lawson is one of two new specialist coaches appointed by Scottish Rugby within its high performance unit to ensure continuity across its high-level teams.
Former Scotland international Lawson has joined as a throwing specialist.
Craig Dods, a development officer with Gala, will be a kicking coach while