It's the same exact Ronda as always. if her opponents don't run into her ala Cat and give her the easy hip toss then she bull rushes in, throws a sloppy combo to try and grab someone for the hip toss.
Holm and Nunes were just able to avoid that and over power her. Ronda has literally not evolved at all since she started fighting.
Also Cat would have probably beat her if she didn't come in and literally give the fight up with the dumbest game plan ever, Cat has had no business in the octagon since her husband committed suicide, and against Rousey her head clearly wasn't in the fight.