You have to offer more training-wse than the next guy, or you will be replaced. The people who hire me as a trainer are very satisfied. We do functional movement screens, dynamic warm-up/static stretching, and I am on their diet daily.
Most trainers are, "Give me my client, I will whip something up on the spot, and they will be satisfied enough." I go in with the attitude that my clients are looking to replace me everyday so I bust my ass to please.
I have that attitude with the clients i like. the others... eh. I secretly wish sometimes they WOULD replace me!