Er, right, the question is about how size affects the ability to have effective supervision. You also need to at least try to have supervision, but I think that

Er, right, the question is about how size affects the ability to have effective supervision. You also need to at least try to have supervision, but I think that's taken for granted by the proposal to make things smaller (I guess assuming that lack of interventionist supervision now is due to it failing in the large group, and will come back at smaller scale).