With the crucial South Africa Test series looming, every man and his dog has been stumping up their preferred Test squads for the series. I have picked five batsmen, four players I have classed as all-rounders, one specialist wicketkeeper – though there are also two batsmen who can keep competently – and five bowlers. My criteria was a bit more than ‘change your last name to Marsh’ or ‘play for New South Wales’ – although I do recommend the latter, as more than a third of the squad are New South Welshmen compared to just two in the squad being Marshes. I paid special attention to Sheffield Shield form as well as efforts in the Ashes and through Tests in general for 2017. Batsmen David WarnerNew South Wales, vice-captain, 543 runs at 90.5 in Tests in South Africa He’s a shoo-in for the opening spot, which has been the case since his last tour of South Africa, where he scored three hundreds, including twin tons (135 and 145) in the decisive Test. While the Ashes yielded only one triple-figure score for him, on a road of a pitch he scored 997 runs in total in 2017. He’ll be an important…