Focus on establishing and controlling the grips before you begin the process of reversing the position. Solid control and engagement is one of the more important steps before you move forward.
Turn in on the side
A correct position of your body will allow you to see the openings and opportunities to escape and sweep your partner. Keep in mind to turn your body into your partner. Being on your back is never good, more specifically in this position it will give your partner the power and leverage to control you and move to a quick passing to the side.
Always keep in mind "keep your friends close and your elbows closer". Hidden elbows is easy to protect you from the majority of attacks and allow you to maneuver your upper body and create opportunities to attack.