Transitions

This is the theme for this week's Weekly Adoption Shout Out but, a bit like when I posted about Play, it's hard to isolate a transition in Baby Spouse's life.
Other friends - parents of adopted and birth children - talk about transitions meaning changes of school and carer, I'm guessing moving house, that sort of thing. Obviously moving to a foster carer or an adoptive family would be under this heading too.

But I see Baby Spouse transitioning multiple times a day. This afternoon he woke up from his nap and yelled something approximating to "I'M AWAKE AND THIS IS WRONG". Every day when we go to nursery he has to adjust. He had three weeks off over Easter (it would normally be two but he was in hospital before that) and he was pretty upset when he went back. I was very pleased to hear he'd been clinging to his carer for most of the day - it means he knows she's safe. He's also only just started to get excited when I get his coat out, because he's worked out it means he's going somewhere, potentially exciting (rather than being grumpy becaOther friends - parents of adopted and birth children - talk about transitions meaning changes of school and carer, I'm guessing moving house, that sort of thing. 
Sadly, although we know his nursery is great, we are looking for somewhere else. The combination of location (near my work, not near home or the station that Mr Spouse commutes from), and hours (very short) and flexibility (never able to switch days) means I've been having to turn down important work travel - even just short overnight trips or long days - as only I can practically drop him off in the mornings.
Baby Spouse would have to change keyworkers at the end of the year anyway, but the nursery is lovely otherwise, so I am a bit sad to be thinking of taking him out. However I have had a clever idea, to see if he'd cope with some days at nursery and some with a childminder. I think we'd prefer to use a childminder for after school care if we need it in the future, anyway. So I'm crossing my fingers and going to do some ringing round later today or tomorrow. I didn't think they'd appreciate a daytime call today on the last day of the school holidays.
But in my "are they completely mad" mode commenting on adoption practice, I gather from other adopters of fairly young babies that the standard approach is to have a fairly short period of introductions (where adopters meet children first in their foster carers' home and then transitioning to their own home). I also know that adopters have fought - usually unsuccessfully - to have informal meetings before introductions, even where they are already parents of a biological sibling of a new child. Answer this question with your sensible hat on: who is a newly adopted baby going to feel safe with? Someone they've known for a couple of months and have seen at least weekly, and who has been caring for them daily for weeks? Or someone they met last week and who more or less immediately leapt into the parent role?