Sounds to me like you got caught with your coaching guard down. Nobody wants to interrogate a kid/family when they are looking for a new team. But sometimes it needs to be done. If you are like me you had the idea that something was amiss. Every time I ignore that inner voice it jumps up and bites me in the butt.
Yup. I actually had a frank conversation with the dad before arranging the tryout. For me, as soon as he said that he wanted his DD to play with her old team one last weekend to say goodbye, I knew I was being used.