Looking for info

I was talking to a minor league pitcher who was telling me about a pitching program in one of the Carolina Colleges.
It consisted of throwing a regulation baseball, a heavier baseball , a football(to notice the spin) a tennis ball and a whiffle ball to feel the arm acceleration. He had to run into the dugout and I never had a chance to talk with him again about the sequence’s Like: How many pitch’s with each ball, what distance’s with each ball, do you start with the baseball, then football or tennis ball, whiffle ball? Has anyone ever heard of a pitchers training program like that. If you have could you post it .
Thanks, Bill :roll: