I don't mind that my dd will have to try out or compete, I think she will welcome that challenge. I do know there are a couple of girls that could influence her decision on whether to stay or go. She really bonded with a couple who say they are unsure what they want to do. Coach was fine, not really that issue. Not sure she is playing at the highest level she could, maybe tryout for elite level and not even get a look. Maybe she is better in one coaches eye than in another, there again, depends on level of athlete on that particular team or at that tryout.
Just saying that it would be nice to have more of an open conversation about the team with the coaches and parents, if every position is open, so be it. if you plan on keeping a core of players at their positions, so be it. If you have some that you definitely don't want back, so be it. And then it is up to us as parents to talk to our dd's about what they want, they should in my opinion have the biggest input.