That’s generally a good idea, however, there can be reasons not to do it.
The device could be infected in a way that it won’t turn on again.
You might have an isolated management network that allows you to monitor the device and traffic (naturally ripping all cables also disconnects the management network).
You two are overlooking the most important thing. It might be fun to crazily rip out the cables then make a junior guy go trace and repatch it all. The opportunity to legitimately do that doesn’t come along often.
That’s generally a good idea, however, there can be reasons not to do it.
The device could be infected in a way that it won’t turn on again.
You might have an isolated management network that allows you to monitor the device and traffic (naturally ripping all cables also disconnects the management network).
And whatnot. But generally I agree.
You two are overlooking the most important thing. It might be fun to crazily rip out the cables then make a junior guy go trace and repatch it all. The opportunity to legitimately do that doesn’t come along often.