Full trust.
If you have doubts about the trainer’s competence or the way the trainer works, terminate the cooperation immediately.
It’s a waste of your money and time and the coach’s time.
“Then I’m not supposed to report my concerns?” Report information about your well-being, all feelings that in your opinion are non-standard, e.g. how the training affects you today, whether it was easy to perform or maybe extremely difficult, that you have a harder week or a looser week.
Leave training planning to your coach.