Did the Australian cricket team go overboard in belting out their traditional victory song in the middle of the pitch at the Sydney Cricket Ground on Sunday afternoon?

Only moments after captain Michael Clarke's catch at second slip secured a 281-run Test victory over England and a 5-0 Ashes series clean sweep, spinner Nathan Lyon led an uproarious rendition of the team song - in full view of the England team and the 40,000-strong crowd.

Certainly, the Nine Network's television cameras drew too close for the comfort of many families watching at home as the victors huddled together to bellow the words of ''Under the Southern Cross I stand'' all the way through to its profane crescendo.

A modest, dare we say gentlemanly, moment of public exaltation might have been wiser but most Australian cricket fans would have forgiven the explosion of jubilation after four years of pent-up Ashes frustrations. At least when the Aussie team ventured back out onto the centre of the SCG at midnight to sing their song all over again, they managed to do so without relieving themselves on the pitch, unlike their English counterparts at Lords last year.

The 2013-14 Ashes series has indeed been a golden summer for Australian Test cricket. The English have been comprehensively outplayed by Clarke's men since the first Test in Brisbane. Victory at the SCG has capped a remarkable turnaround for a team that last year was thrashed 4-0 in India and beaten 3-0 in England. Inside three months, the Australians under coach Darren Lehmann have gone from a dispiriting nine-Test winless streak - and associated off-field dramas - to claim the most emphatic 5-0 clean sweep in Ashes history.

It was only the third 5-0 series win ever in Ashes cricket (after 1920-21 and 2006-07). Australia has now jumped two spots - past England and Pakistan - to third place on the international Test rankings. But therein lies the next quest for Australia's cricketers: beating the world's best, and doing it away from home.

While it's understandable that Aussie cricket fans will want to savour the special feeling that comes of walloping England, only beating South Africa and India in their respective backyards will really show how good our team is.

Next month the Australians go to South Africa for three matches against the Test team ranked by the International Cricket Council as No.1 in the world.

Winning there - it would be Australia's first series win away from home since early 2012 - will take some doing. South Africa has been the best team in the world since 2009, consistently winning away from home (They won their past two Test series in Australia, as well as a series in England).

The challenge for Australia from this point will be to balance the desire to continue winning with the need to blood the next generation of players. Former NAB chief executive and BHP Billiton chairman Don Argus - who led the landmark 2011 review of Australian cricket - has already singled out succession planning as the ''big issue'' facing Australia's winning team.

It's a problem, of sorts, caused by the Ashes success. Even with seven players aged over 30, the Australian XI has remained unchanged throughout the 2013-14 series - a first for a five-match contest. Clearly, this is good and bad. What coach would want to change such a winning combination? But then, what coach worth his salary does not keep an eye on the future by bringing up fresh talent and testing younger players at the highest level?

Cricket Australia's Team Performance Review, chaired by Mr Argus after the home Ashes debacle three summers ago, set four specific goals to get Australian cricket back on track: regaining the Ashes in 2013; winning the 2014 world Twenty20 title; winning the 2015 World Cup; and restoring Australia as the No.1 team in Test cricket within four years (2015). This summer's Ashes triumph has been sweet, certainly, but to be No.1 in all forms of the game would be an achievement well worth shouting about.