She misses the base completely. She did attempt to use her left foot to touch the base, but missed.She touches the bag with the wrong foot. Left foot should touch the base.
Momentum makes it hard to stop and step back. I like to teach to step on the back with the left foot, then step towards ball with right and plant then throw. Stepping back also is not preferd for me, because the runner is in the way of my arm. I also do not like to make any play behind the runner, so if ball is late, be ball side. If its a force, ball side.She touches the bag with the wrong foot. Left foot should touch the base.