Is the 457 visa program a stopgap?

Marcus L'Estrange writes: Re. "Unemployed not shut out by 457 holders" (yesterday). As a teacher and a former CES worker I know the unemployed are not rocket scientists, but I also know many can be trained up to fill many of the jobs that are now taken by 457 visa holders. When I lived and worked in Shanghai in 2007 I met an old chum from my CES days. He was running a 457 visa recruitment company. His line was that the 457 visas were only a short-term measure or a stopgap until Australia trained up its workforce. Trouble is, that was seven years ago, and the same argument is still being trotted out by the John Bands and employers who don't want to pay for training or Liberal governments that have cut TAFE spending.