Being a judoka Rousey has one of the best ground games in women's MMA,Holly was able to stop all of her take down attempts and she was a bit over confident in her boxing and she thought she could match a world class boxer in terms of out boxing Holly and multi division boxing champion and that was the biggest mistake Rousey did and sure she will be back stronger than ever
The reason why Rousey tried to box with Holm and stay toe to toe with her was to pressure Holm and then for Rousey to get her in the clinch as that's her strong point. This didn't work because Holm already knew Rousey's game plan.
Rousey has already overused the strategy and also Holm exposed holes in Rousey's striking game. So vs Nunes I don't know how she can dominate her opponent. This match is really closer than we all think with Nunes only a slight underdog.
Rousey never had a proper strategy when she came to fight against a world class boxer,she was defeating everyone easily and she believed in her hype and was really careless and Rousey found it hard to respect Holly Holmes world class boxing caliber,she really thought she could out box her since she was knocking out girls within seconds.Nunes is a brawler and she has good ground skills too,if Rousey takes her to the ground i want to see how nunes counters that,its a very good fight
It's more like Rousey was always the stronger one physically vs her opponents. But when defeating someone that would make use of skill and finesse she just lost it and exposed holes in her game. There are articles written about her striking coach being incompetent or something like it in that regard. In some MMA forums there were calls for Rousey to train with other camps and other coaches to widen her horizons in MMA. If she thinks she can get in the octagon and overpower Nunes she's in for a surprise.