Eh? Oh, yeah - Monday rest days. Makes sense if you do lots of races on Sundays (to me, anyway).
You should be able to shift the schedule, or parts of it, along by one day, or just swap days around - it's not cast in stone.
It's rather harder to fit it around a load of other races of varying lengths. In my case at least a 5k, a 10k, a 7M and a full mara, with probably another two 10ks and possibly a 5M... flexibility is, as in so many things, key!