Well I have tried...
It didn't work for me.
ds1: was supposed to be feeding every 3~4 hours. He never ever made it after 2.5 hours until he was about 6~7 months old and on solids. (And even after that, he has been twitchy about food and when he was going to eat until well after his 3rd b'day)
ds2: was supposed to have schedule naps. Missing the point where he was tired by 10~15 mins meant an extremely tired child who WAS NOT GOING TO SLEEP.
Seriously, just as much as I loved the idea of a routine and actually had one with both of my dcs, that routine came from:
1- the baby (because they actually develop a routine of their own)
2- whatever was happening around them (ie ds2 had to adapt to ds1 routine, just because ds1 was there iyswim). You mention having to get up at 6.00am for the school run etc... and then wanting your dc to be awake later in the evening. So it is clear that your baby is and will have to fit around that anyway.
However, that book made me feel awful because each time that one of the dcs wasn't actually 'conforming' to the rule I was feeling crap, as if I was the worst mum in the world for not managing that.
If you want a routine, I would forget about this book, look at what your baby is already doing and build up from that. I would also keep an eye on the afternoon nap and try to always have one after lunch, mainly because it's the one that stays for a long time. Same with the the evening routine because again going to bed at a decent time is something that is going to stay.
Other than that, she will give you an idea of when a baby is more likely to drop their morning nap etc.. which is useful as a guide only.
I you look at your baby and what he/she is doing atm, you will see when dc is tired and start putting her to bed around that time everyday. She will get used to it and you will develop your own routine that will fir both the baby and your life.
NB: I would be very careful about hoping to schedule clients around nap times. My experience is that babies are very good at waking up/refusing to go to sleep on the day that you need them to....