Andy Murray parts company with coach MaclaganBy ALIX RAMSAYIn only the sixth year of his professional career, Andy Murray is now on the look-out for his fifth coach after he sacked Miles Maclagan last night.Murray and Maclagan were the team leaders in the jolly boys' club that is Team Murray. For two-and-a-half years they have worked their socks off to reach two grand slam finals and promote the Scot to a career high ranking of No 2 last summer and, all the while, they have laughed and had fun. But Murray is now going it alone as he heads towards the US Open at the end of August.Maclagan, along with Alex Corretja (Murray's coaching consultant) were in Miami last week helping the Scot through his mid-term training block. Work was going well, so well that Murray felt ready to play in the Farmers Classic this week in Los Angeles, but the future was still uncertain. After long talks, Murray decided that if his two coaching advisors were not in complete agreement, he had to take action.