I think your DH handled it very well. I hope this will start the ball rolling for positive change.
Thanks.
Another update:
It looks like the assistant coach did speak to the coach, after the 2 girls talked with her (assistant coach). So practice today was a "discussion day".
DD said that the coach was made aware there were some problems & she wanted the girls to discuss everything amongst themselves while she listened & took notes.

Of course, they were apprehensive, but a few of them started discussing things. It turned into a discussion with the coach, however.
DD said the coach listened but continued to interject & defend herself & the things she does. She said there was no yelling, but the coach did say, "I am in charge & we will do things my way." I do get that - she was given the authority.
We asked DD if she felt better after the meeting, worse, or if things will remain the same. She said that she was glad they had the meeting, but the coach was defensive about everything & rebutted everything that was said. She said she thinks it will be better for a while, but then she'll revert to her old ways, which is what happened last year after a "discussion day".
Coach texted DD thanking her for speaking up at the meeting. We told DD the best response would be "Thank you also. I appreciate that you listened to us. I hope it is positive for everyone." Coach texted back to say that she agrees & thinks this team can be great!
I don't know what to think. It's up & down with this woman. We talked about it at dinner & I told DD that I really wonder if the coach does not feel there is anything wrong with the way she behaves. She hears things like she did today & gets confused as to why the girls feel this way & don't want to play for her. It's almost like a personality flaw that she doesn't realize there may be some fault in the things she does even after the girls bring it to her attention.
So, that's the scoop at this point. We'll see..............