Can someone explain this to me? By 2020 or so, Canada needs 200,000 hi tech workers. 

So the plan is to open the immigration floodgates then.

Why isn't the gov't seeking to find 5000 excellent teachers of hi tech who would like to immigrate here now, and starting to teach Canadians so they will be ready for those jobs three years from now?

Please, anyone. If you can explain this.