Although there are some private schools who only let physics teachers teach it if they majored in physics/have a Master of Education (Physics)...
Edit:
Oh, there should NOT be any physics teachers who cannot TEACH let alone pass SC maths. Almost EVERY NSW HSC science teacher is qualified to teach Years 7-10 Mathematics, because mathematics has always been a key element of every reputable science degree in Australia.. so... you're wrong if you're implying there are STACKS of physics teachers that don't know maths.
They would be an anomaly
Anyway, on with the discussion...leave the Senior Science course as is? Make every other science course a bit more mathematical? I only say this cuz that way people who don't like maths could just do senior science and we'd have more mathematical, interesting courses in specialist areas, ie geology, biology, chem, phys. An astronomy course would be good too ... it's only a small part of physics now.
What the hell though, the curriculum is bound to change under PM Rudd's 2011 National Curriculum (ie every state will, probably after the next 2011 election, have the same curriculum, from Year 1/Kindergarten to Year 12)