One of the great inconveniences of a three-year election cycle is that there is hardly time to break campaign promises before having to face up to the ballot box, the memory still fresh in

the mind of scorned voters. So it was that the prime minister turned up in Adelaide on Tuesday with an apologetic smile and a promise to backflip on Tony Abbott's backflip:

Australia's next generation of submarines will be built in South Australia after all, just as pledged in the leadup to the 2013 federal election and reneged upon shortly after the

Coalition secured government. The difference this time round is rather than a mere verbal contract with voters, there is an actual contract being hammered out with numbers and timetables and

here where we stand today – for decades into the future." The submarine news has the potential to kill several birds for the Coalition with one multibillion-dollar stone, reassuring not

just Australian Submarine Corporation (ASC) employees of their job security but also those facing the axe in other industries battling to survive in South Australia's beleaguered

economy. The emphasis on local steel at least implies that there is some hope on the horizon for the 300 Arrium workers uncertain of their future in the state. In addition, the South

Australian government has simultaneously announced that support will be provided to reskill retrenched Holden workers for work with South Australia's shipbuilding industry. It follows

Turnbull's confirmation last week that the first two years of the $3bn offshore patrol vessels construction project would also take place in Adelaide from 2018, narrowing the so-called

"valley of death" facing local shipbuilders. The Coalition brand had become synonymous with South Australia's economic malaise after going back on the promise to build

submarines locally, ending support for the automotive industry and watching on as the steel sector collapsed. Turnbull has now at the very least disassociated himself from Abbott's

decisions, reducing Labor and Nick Xenophon's line of attack. Some 2,800 jobs have been promised nationally on the submarine contract (including indirect work flowing down the supply

chain) in addition to 400 jobs created courtesy of the offshore patrol vessels contract. Turnbull promised the submarine work would deliver advanced manufacturing jobs "for our children

and our grandchildren for decades to come." Unfortunately, as it stands, those future generations will still have to make do with far fewer jobs than there used to be in South

Australia, even with tens of billions of dollars of shipbuilding work in the pipeline. In terms of employment numbers within the shipbuilding industry this latest announcement represents

more a reinstatement of jobs that have been vanishing rather than a significant gain. The numbers pale in comparison to the 24,000 jobs predicted to disappear from South Australia by the end

of 2017 due to the collapse of car manufacturing. Add to that the thousands of jobs already being shed across the rest of the state's economy and the likelihood that a dozen submarines

are hardly likely to sustain an entire steel industry. But those are the details, and this is an election. Abbott might not have done Turnbull too many favours in South Australia, but

there's at least one valuable lesson he imparted: it is slogans that win elections. Australian built. Australian jobs. Australian steel.