S15 did tell me one of my long-distance coaching tips has paid off: reaching back 25 years or more to my own coaching days of yore, I told her as the CF to always play about five (or 10) steps deeper than she thinks she ought to.
I put it in these terms:
1) What's a fly ball that drops in front of you?
a) a single
2) What's a fly ball that goes over your head?
a) probably a triple or home run
... so all else being equal you're better having the ball drop in front of you.
Also, if you are going to make a running catch, it's easier to do so coming in than going back.
And in addition, if you want to make a throw after fielding the ball, if you're going back you have to stop, do a complete 180, gather yourself, wind up and throw; if you're coming in, you're already heading into your throwing motion so you can get a lot more on the throw.
Anyway S15 says it's made a huge difference; "every ball seems to be in front" of her now. Earlier in the season when she was having defensive problems, she said every ball seemed to be going over her head and she spent half of every game chasing triples and home runs to the fence.
Her JV coach is a former pitcher and never gave much thought to playing the outfield.
Her advice for OF positioning is to go out about 50 feet off the infield dirt, and "if they start hitting it over your head, go back."
I said, "go out about 50 feet, then go back about 30 feet more, and if they start dropping in front of you, come in."