Ted,
Why are you adamant that Jr play position "X" and only that position? To use an analogy, if I have an employee that "good" at his job and enjoys it, but I as the employer see other more valuable potential in him that will further his career, what should I do? Allow him to continue mediocre work that allows him to stagnate, or give him the opportunity to grow and become more valuable because of his versatile skills? I guess what I'm saying is that a parent we see things that our kids are capable of doing and want them to be successful, but there is value in what other people see in our kids as well.
As far as getting you're money back, I wouldn't expect it. Jr agreed to be a part of the team and did get playing time, which is probably more than other players got. I don't think any ballclub would refund the money because of a player didn't get to play position "X" the entire season. That message would be ****ing to any club.