Much of what you read here is what I believe. When I converse with a client I show them the how and the why. Completely transparent. This is how_ you will do it and this is why_ you will do it. I don't give a workout simply because I "believe" the workout works but rather because I know_ the workout works. If it's a swim workout that I remember doing from back in the day I learn and figure out why_ we did it. What sort of physiological adaptations the workout is looking to cause.