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Re: Phantom CAD Technicians!
When something wrong gets into a drawing there needs to be accountability; you need to trace where that change came from, supervisor or technician. Without that markup it's unknown if the change is actually valid or not. Those kinds of questions lead to churn (mystery change => take time to change it back => field/fab/client/etc. notices it doesn't work => change is redone).
And, being a bit of an *** about it but... It's easy to end up a little "top heavy" when the supervisors/engineers/whatever are well connected with management. Bottom line still has to be consider though. If the engineers/supervisors are frequently moonlighting internally it may be time to shed some excess weight.
If you are going to fly by the seat of your pants, expect friction burns.
Some say beauty is in the eye of the Beholder... perhaps so, but I've only seen the disintegration beam.
Everyone else being wrong is not the same thing as being right.