Fire your entire payroll department. No one will notice... until the biweekly paychecks don't go out, and now your employees aren't getting paid.
Fire badge security. No one will notice... until you need someone to make a new badge for a new employee.
Fire your IT staff. No one will notice... until the server crashes and no one can reboot it.
Fire your system reliability engineers. No one will notice... until the World Cup is on and you have 10x regular traffic and now the site is crashing under the load.
Fire your lawyers. No one will notice... until you're now being sued for violating all the laws in all the countries for posting child porn (because you previously fired all the content moderators who were preventing that from being posted).