Savouring the satisfaction of winning the Vodafone Ashes in fewer days than he spent in COVID quarantine after Australia's earlier triumph at the T20 World Cup, Pat Cummins insisted he had yet to consider the possibilities of subjecting England to another 5-0 shellacking.But while that prospect must offer appeal to someone who missed the previous whitewashes in 2013-14 (when sidelined with injury) and 2006-07 (when playing for Glenbrook-Blaxland juniors aged 13), Cummins has lifted his gaze even further ahead.Within an hour of overseeing England's rout for their lowest total in Australia in almost 120 years, Cummins was talking up the depth of talent at his disposal and how the team's evolution had them positioned for even bigger prizes in coming years.There was a time when beating the…