What you told her and the mother was, "I am powerless to control your DD." That is not a real good message to send to the team.
The only tool a coach has to discipline kids is the bench. If you don't use it, the kids and parents will end up running the team.
As far as "loving" the kids...your job is to coach. The parents and grandparents are there to love the kids.
I'm sorry, Sluggers, but I disagree with you on every point. In fact, I will agree to disagree with you because this isn't going anywhere. Thanks, though, for your input.