I've only watched a couple of this season's shows (and had only seen it once I think of any other season) but I have read this thread

I was just appalled by that Lisa Lampenelli

Any of merit that she may have had to say, was drowned out by all her nasty name calling and cussing. There isn't any reason to speak to someone that way in this situation. And Lisa kept going on about how educated SHE is and about how she works in a man's world-well I had no idea she was supposedly so smart till SHE told me!

I certainly didn't pick that up from her behavior or words! And I also work in a male-dominated job, so I don't buy her excuse for treating anyone that way-I certainly don't!
I was dissapointed in Clay. I like him and I'm suprised that he seemed so fine with what Lisa said to Dayana.
Lisa made it sound like Clay was right on board with it all, including the cursing at Dayana and the personal attacks. Maybe he was 
And what was their problem with her English? Have they never worked with a person who's first language is not English, or had a manager at work who is not a native English speaker? It seemed to be such a huge issue for them, like they could not deal with it.
This show is so weird. The rules seem so fluid.