I fail to understand to how it can take action on problems if it is not an ongoing entity.
GS: I think that it is fairly clear that the PRT has to be in a state of readiness in order to deal with "non-periodic" events. On the other hand, we don't want the PRT to feel the need to justify its existence or fill monthly meeting agendas or expand its scope. These can be controlled by the PRT's organizing documents (perhaps a charter).