The problem is more Rousey than people are giving credit to. Her coaches mighn't be even average, but they are giving her instructions that she does not comply with as evidenced in the Audio of the fight:
http://alaysia4.tumblr.com/post/155198486534/thechlostertalkssports-dirtyboxing-enjoy-the and Rousey's actions during it, show that she is not doing what they've probably been working on for months. What happened out there was all Rousey, for whatever reason, (though I believe it's an obvious display of stage fright or PTSD) her head wasn't in the fight even though she was probably told what to expect as soon as the bell went.
It's easy to round on Edmund, being the thoroughly dislikeable individual that he is, but to absolve Rousey of blame for what went on out there is not doing her any favours. Fact is, she could have a re-animated Cus d'Amato training her for six months and it would do little if she froze like a deer in headlights on the night. The two factors (How poor a striking camp she actually has vis-a-vis her mental state on fight night) should be looked at in isolation.
Rousey has never liked getting hit, and it jars her line thinking every time. She always goes into an instinctive, suicidal bull-rush-for-the-clinch mode, absorbing a number of punches to get in - that worked fine on the tomato cans she was being served up, but it will never work on competent strikers with movement and belief in themselves. Rousey's whole belief system needs to be stripped back and worked on if she is to do anything in this new MMA world and that requires a level of humility and introspection she might not even have in her.
Given she's 30 in a month's time, with a career outside of the ring to try and salvage by now (her stock and persona as some bad ass is not marketable after two humiliating defeats), she might just sack it all off and walk away from the sport entirely.
At 30, it might be too late for her to join another camp, truly take on their values whilst humbling herself and being told all her faults etc. and being just another fighter. She doesn't strike me as the sort who can get over herself and see the bigger picture... or work well with others who won't be yes-men indulging her ego.
From a PR perspective, it would be the angle to sell her from... the broken champ rising from the ashes and all that... but I can't see her getting on board with that.
Incidentally, Jon Jones has sort of offered her the chance to train with him?
The irony of him being the messenger notwithstanding, it would be interesting to see what could be done with her in a proper camp that worked on her both mentally and physically. It might just be too big a slice of humble pie for her to entertain the idea - what with Holm being there - but it would be her best bet to restore some credibility as win or lose, she wouldn't be humiliated out there again... assuming her stage fright/PTSD trauma can be addressed as well. I do agree with Jones that this is her chance to round her legacy out and not leave the sport in the most undignified manner imaginable.