It's definitely a challenge. As I said earlier, there is a shortage of core French and French immersion teachers. The popularity of French immersion programs means that all teachers capable of teaching French are hired by immersion schools. This reality exacerbates the shortage of French-as-a-second-language teachers.
What can we do? A number of studies have been done on the subject. Certainly, language training for teachers is important. In some provinces, there are teachers who don't speak French, but who teach French. Then it comes as a surprise that the results aren't satisfactory.