Khawaja takes catch at first slip to dismiss Crawley for a duck in first over

Here we are again, discussing Zak Crawley's place in England's Test XI.

Ducks in each innings of the first Test in Perth has brought back a debate that never really went away.

Can England continue picking a batter who has the lowest average - 30.96 - of any opener to play as many as his 60 Tests?

A change is still highly unlikely because of the faith held in Crawley and the fact there are no back-up openers in the touring squad - so what is England's thinking and is it flawed?