With no incoming work, we SWEs will make ourselves "100% utilized" just rearranging things. We might be sincerely trying to clean up the software, but still, it'll never end until you give us a real task.
And the alternative is to have managers who do nothing but rearrange the chairs in the company. Which doesn't even achieve good uptime or code cleanup, plus, in the case that your company does find something to do, those engineers CAN do it. The managers can't.
