I remember reading about the basic premises of P+C and P+F at least 15 years ago. It really STARTS with the carb depletion and loading methods which were certainly around in the 60's. The "anabolic" diet had you eating P+F 5 days a week, and P+C on weekends. I can't remember who first presented the anabolic diet but it was 10 years ago or so, and bodybuilders had used variations for much longer.
The main thing with Berardi, I think, is that you can have P+C and P+F meals in the same day, although I know I read at least 7-8 years ago about eating carbs+protein throughout the day, and then Protein+fat before bed, or any time you would be without food for 3+ hours. This plan also had you eating whey with carbs and casien and glutamine with the fat before bed.