"Consistency of care"

My mum has carers in 4 times a day. This works really well with her two usual carers as they know her routine, likes, dislikes. This is really good as my mum has dementia and likes routine.

Unfortunately when any of the usual carers are off this just falls to pieces. She gets carers who have never been in before and sometimes 4 different carers a day. The times can also be diffent and this causes my mum to be stressed and anxious. Why can't NAC not have a hand over with the replacement carer coming on shift and try to keep the consistency of the same carer for the four visits a day and the four days normal carer is off.