If it's just one congregation they could do away with the whole body and replace them with more loyal hounding-hounders, even sending some stern company man who'll whip everyone into paying their dues.
Getting rid of a whole elder body has been done before if there's a pattern of non-compliance with Momma WT's rules. If one of the former elders is kept, this shows clearly that loyalty (a$$-ki$$ing) the Borganization is clearly what they want in appointed men.
It will definitely send a message to other near-by congregations not to step out of line.