Why should companies who specialise in project-based work be forced to carry the over-head of employing entire teams on a full-time basis? There is absolutely nothing consitutionally wrong with labour brokers. Even Cosatu will admit it the moment you ask them whether casual labour in itself should be outlawed. Of course not...
As far as I know this has more to do with getting rid of the middle man, which I fully support. I temped for 2 years once, through Emmanuels, and they took a nice slice of my pay cheque every week, and offered nothing tangible in return.