You can read weakness quite easily by looking at the number of dropped balls, number of knock ons and the number of basic mistakes. Add in the fact that this Canadian team are coming off a short turnaround after getting thumped by Italy. I think Steve Hansen will be giving them an absolute hammering after that performance, because if they make a tenth of those mistakes against a good side they will find themselves in trouble. New Zealand generally do the basics to an extremely high standard, that's now 2 games in a row where they have failed to do so.