So Canada is already "negotiating with the private sector"?! We, the great unwashed, the ordinary people would also like to be consulted. It is noticeable that the media in general regard trade deals as good because they all jump into concerned mode when renegotiation comes up. It is now perceived as truth that job losses  since NAFTA came into effect are because of "automation" not because of the steady draining of jobs to cheaper jurisdictions. It would be good to get some actual figures as to how many net  jobs were directly attributable to NAFTA.. I suspect not many as Canada is the most expensive labor area. It would also be interesting to note how many protective measures for businesses that are going to be retained in any new NAFTA besides the ability for corporations to sue taxpayers for loss of profits. 
Any renegotiation needs a sober, unbiased reckoning of how this treaty has benefitted/harmed Canada and Canadian workers. We don't need any more baseless cheerleading.