Do you teach TTB mechanics? I think it was mentioned earlier in this thread that there is to much adduction, slotting of the back elbow.
There is some slack in the swing because she isn't TTB immediately with the hands. The hands are along for the ride as the elbow slots and rotation begins. That is why at contact the hands are not active in driving through the ball. Because the hands are dead or just along for the ride.
I agree. Now, how do we correct it?
Folks, take note that this pitch is fairly high in the zone.