Being at the Engineering Line Manager level but reporting to the VP means I know how easy it is to make technical mistakes and even get to participate them sometimes while at the same time needing to provide upper management with confidence in our projects and upgrades.
I have little concern of engineers making mistakes if they are caught quickly and resolved - more so with not testing ahead of time to learn from mistakes and moving on without notifying or asking for help to button up a project or task.
Measure twice, cut once, then you know what, measure again and if need be re-cut.
Lets not wait till we have a team of people holding up the walls to find out that the joists are cut short.