Professor Malcolm MacLachlan:

That is the essence of the clinical guidelines we have developed. In many cases, more than one therapist will need to be involved in an assessment and it will take longer than that. Where cases have presentations that are relatively less complex, it allows provision to have much shorter assessment. The idea of universal targeted and specific interventions is that for some people it is sufficient to have universal interventions. Where that is not sufficient, there are more time-consuming interventions from the point of view of the service. The tiered approach means trying to get the most out of an insufficient resource.