Cape Town - Australia's impressive Ashes win over England does not necessarily mean the start of a new golden era, says former coach Mickey Arthur. GALLERY: Aussies Ashes glory!Australia won back the Ashes on Tuesday when they thumped England by 150 runs in Perth to take an unassailable 3-0 lead in the five-match series.According to Arthur, a team featuring two 36-year-olds and five others over 31could soon start experiencing some problems.The South African was sacked as Australia coach earlier this year after a string of disappointing results.Arthur, in an interview with the BBC, said said he was filled with "joy" about Australia's Ashes success but warned that the rebuilding process he tried to make a priority would have to be revisited soon.''It's an old team now. (Chris) Rogers is 36, so who is that next opening batsman? Is George Bailey good enough? Where does (Shane) Watson bat? The same questions that I had during my time are still there today. Who is the next wicketkeeper? Is it Matthew Wade because Brad Haddin is 36? Ryan Harris has got probably one season left in him, Peter Siddle is now getting (close to) the wrong side of 30, Mitchell Johnson … Australia are going to face all those same things that I went through in my time and tried to fast-track albeit through circumstance. They are going to face them in the next year or so," said Arthur.Arthur, who also coached the Proteas between 2005 and 2010, is currently involved as a coach at his academy in Perth.