Need Teacher Support?

There are already more than 500 VVTO (primary) schools in the Netherlands. That’s a very exciting development in education. Since there are very few teacher training colleges that actually offer any form of training in how to teach English, this is indeed quite amazing. How do they do that? Shouldn’t there be more teacher training and support before schools embark on such an ambitious project? Or at the very least some form of support from native speaker teachers?