Savannah did what we think she needed to do - which was make a statement. Hermans had not been stopped up until now, as a former champion, and Shields was taken the full distance by her.
Marshall's power in both hands is legit, and Shields has basically zero power. Her only chance from our perspective is to stay away from that power; but Marshall seems to be able to just walk opponents down at will.
This will be a great fight if/when it happens.