This is important, especially with youngish females. Develop a re pore and some trust and then it will be a lot easier to be hard on themSo you can't just tell a player to trust that their coach is only trying to make you better. Coaches have to prove it over time. They have to earn that trust. Once players trust that you genuinely care about them, they'll tolerate more firmness.
when you have to. DD's current coach is great with that. He had a daughter who played in college and has been coaching for a while and
you can see he knows this. He lets them mess around with him, tease him etc but when he needs to be hard on them he is.