Does anyone else feel like they are playing chess with nap time placement?

3 out of 5 days per week, I have 5 napping children here. Trying to find a way to nap each sleeping personality work is quite tiring. My daycare is full home, so nap time occurs upstairs. Here is my breakdown on the sleeping personalities and where they are currently sleeping:

1) My son (27 months); sleeps in his own bed in a room by himself. Because lets face it, at then end of the day, it will be I that needs to deal with a grumpy bum. He passes out about 10 minutes of being down and sleeps for a good 2 hours with no waking.

2) DCG (23 months); sleeps in a playpen in a room by herself. She plays or screams for 15 minutes, will sleep for 20 minutes, plays or screams for 15 minutes, sleep for 20 minutes ect

3) DCB (30 months); in a playpen in the sleep room. He does not sleep. He has Williams Syndrome and his mother has told me that he will sit quietly downstairs during nap time, but that is NOT the case. He lays in his playpen and jumps up and down (part of his syndrome) and talks the full nap period

4) DCG (21 months+#3's sister); in a playpen in the sleep room. She sleeps for about an hour and will get up and talk to her brother

5) DCB (15 months); in a playpen in the sleep room. He is similar to #2, except his patterns are shorter (15 minute intervals) and he only cries between 'sleeps'. His sleep has gotten worse since #3 and 4 came along as he seems to be a lighter sleeper, although the was a horrible napper to begin with.

Which brings me to my dilemma. Do I just leave it and hope that everyone adjusts to each other? Do I separate the boy who does not sleep, into his own room and move screamer #2 to the sleep room with the other children?

See, it is like a game of chess, which I suck at, so what would be your next move?

ps. I rock at checkers though