There are certainly people willing & able to teach programming, but most of them are not currently teachers, and many IT teachers would probably struggle to teach programming effectively.
The article suggests that they want to make this change in the next academic year, so where are the teachers going to come from?
They could let those people become teachers without having to go through the rigmarole of largely useless training. The next academic year is nearly eight months away; that's /bags/ of time.
The barriers to entry to teaching are just another reason why so few good people go into teaching.
