COURTESY BY: https://www.cricingif.com/ Aaron Finch has admitted Australia are still searching for their “best formula” in ODI cricket as they prepare to battle world champions England at Old Trafford. The 50-over clashes follow the T20 series in Southampton, where Australia’s middle-order troubles were frequently exposed as they lost the series 2-1. The opening match on Friday will be the first ODI between the traditional rivals since England bossed proceedings during last year’s World Cup semi-final at Edgbaston. Finch, Australia’s white-ball captain, was blunt in his assessment of the Aussie side and commented on…