In the book, he calls for plyometrics three days a week, reducing it to twice a week if you are doing any additional strength training.
Strength training he calls for 2 days a week. He allows for plyos on the same day as strength or on different days. He also talks about doing plyos one day a week if one really needs to work on their strength ("you will be a lot fresher throughout the week").
I am considering working out three days a week, and just alternating strength and plyometric work. So one week has 2 plyo/1 strength and the next has 1 plyo/2 strength, etc. We'll see how I feel.
Looking ahead, volume gets cut down quite a bit by week 4, in both plyos and strength training.