Shes landing with her hips a little too open and this has created an inability to completely stabilize. Turn her stride foot toes several degrees towards the catcher as shes lands the drive, this will close off her hips a bit, she'll stick better, and as a bonus her brush will become more significant.Thank you. We have worked on getting her glove come down to help with drive as Ken B has mentioned. Just finished up today and will continue to work on what you have taught us. I got to get her legs a little stronger. She seems to be having trouble with keeping her balance throughout the pitch.
On a side note, increase the size of her back swing a few inches. This will sync up the timing of where the ball is once her weight sinks into her front hip and the front side resistance really becomes significant. Right now her ball is at 9:30ish... I'd like to see it at 10:30 when her weight really sinks into the front side