to be paid for NOT working?

The City of MS was paid 440k a year to administer Water and Sewer. In two weeks there will be NO Water and Sewer Department to administer. Shouldnt the City Manager and the Dept head invoved take a BIG pay cut now? After all, whatever they were administering is no longer there! It stands to reason that they shouldnt get the same pay for NOT administering as they did FOR administering, does it? Less responsibility=less pay, right?