I know a local farmer who has three or four ES, I have yet to see them do anything useful, they don't herd. Two of them he has to keep chained. They are unfriendly and I wouldn't trust them around people, they'd bite you as soon as let you pet them.
ES need to be your right hand man. They won't function well in a pack of dogs because they are always at odds over who gets to be your best friend. They are extremely pack oriented and need the person to be a strong leader.
The situation you are describing is ES hell. I'm sure they'd be good dogs if raised properly.