Ideally, yes! Given that a whole organisation approach is generally considered to be the one that works best, every effort should be made to speak with the head of the organisation. If however the assessor feels they can make a sufficiently robust judgement about the organisation, then an interview with a deputy or equivalent may suffice. If access to staff at that level proves difficult, this may give rise to concerns about the true extent of commitment to the Standard and its values. If an assessor feels that an organisation is unlikely to meet the standard for the foreseeable future, this should be communicated directly to the head/principal.