The FITT principle can help you incorporate stretching exercise into your physical activity plan. Aim to do stretching exercises as many times as you do cardio—working toward five times per week. Stretch all the major muscle groups. The more frequently you stretch, the more quickly you will improve your flexibility
there are a bunch of different ways to also include her.
Explanation:
Two options would be to make her a kicker and have someone else run for her. Another option would be to shorten the amount of space between the bases making the distances shorter.