It was a surprise move from the boss who saved the Staggies from relegation in his five months in charge. However County are expected to make a quick appointment with Mackay the market leader when bookmakers closed betting last night.
The former Celtic, Norwich and Queen’s Park defender had been linked to Dundee United last summer before Micky Mellon’s appointment and left his Hampden role in November as the national association cut costs.
He has previously been in charge at Cardiff City, Watford and Wigan and also took interim charge of one international match during his SFA tenure.
Current Celtic caretaker John Kennedy was also rumoured to be in the frame for the role, but Mackay could re-united with former his Watford midfielder Don Cowie in Dingwall.