We have a lovely nanny (shared with another family), who currently looks after 2 children both aged 2. One family also has a baby, and the mum will be going back to work in a little while - so our nanny will be taking care of all 3.
BUT she struggles with tiredness (health reasons) so I want to figure out how we can make this easier for her: 2 x 3-year-olds plus a 9-month-old isn't going to be easy!
The older children will be getting their 3-year-old funding after easter so will be in nursery for part of the day.
So - what would be easier:
a) both older children in nursery at the same time, so she would have at least a few hours a day with just the baby, and the rest of the day with all 3 (nice on the days the older ones play nicely together, not so good when they fight! They do usually play nicely together, but have their moments as all children do)
or b) one child at nursery in the morning, and the other at nursery in the afternoon (again, she would also have the baby all day) - but might mean quite a lot of to-ing and fro-ing.
One will be at a school nursery (not sure whether you can get any wrap-around there), the other at a nearby private nursery (so could do longer half-days to allow for pickup/drop-off at different times)
Or is this going to be too much - especially when she isn't feeling very well? What is it like looking after 3 at those ages? I can't imagine it, but I'm not a childcare professional! 
A third option would be to juggle things around with other childcare (family, extended hours at nursery) so that some days she has 1 toddler plus baby, and other days she just has the 2 toddlers. Do you think this is more sensible?
Before someone tells me just to ask her (!), I want to have some ideas in place (and speak to relevant family/cost things up) before we open the discussion so that we can make a quick decision with her about how we do it, and she isn't left feeling uncertain about it all.