GROS ISLET, St Lucia – Head coach Phil Simmons has conceded that the lack of substantive opening partnerships is becoming a worry, following West Indies’ chastening innings and 63-run defeat to South Africa last weekend.The home side produced two feeble batting performances – bowled out for 97 and 162 – with Roston Chase getting their only half-century of the game.Captain Kraigg Brathwaite and the recalled Shai Hope out on 24 in the first innings while Brathwaite and Kieran Powell – a concussion substitute for Nkrumah Bonner – managed only 12 in the second innings.