Agree with your last statement.
Just make sure the water is out there!!! 
Somebody has got to be there working with her. She can't work out by herself. She needs a trainer, coach, former player....somebody. I'm pretty sure she's willing to put in the time and effort to improve if someone will work with her. I respect the fact that YOU wouldn't pin it all on Geno, but I would and did. Geno has resources available to him that she does not.
If I'm a coach, and I recruit a kid, any kid, It's my duty and responsivity to that kid to do
everything I can to help that kid develop into the best player and person he/she can be. Geno always says he absolutely WILL NOT allow any player that plays for him to cheat their potential. There's an old saying.................
don't talk about it, BE about it. Don't talk and wish (lament) about how you wish or hope Amari or any player improves. DO SOMETHING to help her improve.