We really need to prevent the short-term game played by politicians, where they promise rich pension benefits, do not contribute enough to the pension funds and

We really need to prevent the short-term game played by politicians, where they promise rich pension benefits, do not contribute enough to the pension funds and kick the problem down the road for someone else to solve. The only possible solution I can see is to move from a defined-benefit system (eg. pension) to a defined-contribution one (eg. 401K). Everything else seems it can be gamed.