When moving back to a deep Forehand the mistake here is very common. Jo is a right handed player and when she moves back to the deep Forehand you will notice that the first foot she moves is her left. This is a huge problem because immediately her base of support is made narrow as the feet come together. This is death to a tennis player. As a result of this narrow base her movement back is slow and off balance.

In turn as she moves into her hitting position her last step is small and she has no knee bend making efficient rotation impossible.