Of course families are free to go wherever they want the next year and, if they're not happy where they are, they by all means should. But same as I don't think it is very ethical for a company to proactively call another company's employees to get them to leave and switch companies, I don't think this is very ethical either. And anytime prior to tryout time is just plain wrong, as it will likely totally disrupt any chemistry on their current team.