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Full name John Jeffrey Clarke
Born March 30, 1954, Renmark, South Australia
Current age 59 years 263 days
A lawyer by profession, Jack Clarke joined the Cricket Australia board in 1999 and was the board chairman from October 2008 until 2011. He presided at a time when Australia struggled on the field and he was in charge when the Argus report into Australia's on-field performance was commissioned, as well as the Crawford-Carter report into Cricket Australia's governance.
ESPNcricinfo looks at five reasons for England's failure to compete in Australia