Hmm - ya that is a tough thing about group care - trying to meet every ones competing needs while still meeting the needs of the 'group' ... specially with wee ones who do not know how to rest 'quiet'.
I only ever have no more than two under 2 in care because I cannot physically manage lifting too many wee ones repetitively - so that makes it 'easier' for me with morning naps ... I try to keep my morning naps EARLY because most children who've eliminated their morning nap need to be down by 1pm or they are a mess and you miss that 'window' of being over tired and get a crappy nap or no nap at all ... so I want my afternoon naps to be 1-3ish cause that works best for the group ... so if they need a morning nap still depending on what time they arrive I do it before 9 am OR if they will not go down that early cause they just got up at 8am or something than they cat nap in the stroller while I am out and about with the other older children because we need fresh air and so forth and we leave the house between 9 and 9:30 for outside time or field trips... and that way they are usually awake by 10:30 at the latest cause they do not sleep as long in the stroller and ready to go back down again at 1ish with the rest of my older group....works well for us anyway?