ROCHESTER United’s newly-appointed father-and-son management team have quit after just one game.Graham Martin was appointed joint manager at the relegation-haunted Southern Counties East Division One side alongside Matt Hume in December.Martin, former assistant manager at K Sports and Larkfield & New Hythe, then recruited his son Liam as part of the coaching team.But Martin Snr and Hume were in charge together for just one game, a 2-2 draw at Larkfield.A club statement said: “Due to personal and family reasons Graham Martin and son Liam have decided not to conti...