Suffice to say that we are now pretty comfortable with the idea that there are no jobs-for-life anymore, and employees have to stay on top of their careers, as no one else will do it for them. Changing jobs, becoming self-employed, starting a small business - thousands of Canadians have made these changes in the past few years, and more of us will be forced to do the same in the future. Change can be good, but only if Canadians learn to keep an eye on their retirement savings and manage it wisely, or be prepared to work well into your golden years. A big fat company pension is a real rarity these days, so you need to look out for yourself. And for those of us starting out, or wanting a career change, here are the 11 most promising jobs for 2011.