I find it slightly hilarious, if a little depressing, when the enquiring senators crack a collective wobbly because someone, somewhere isn't doing their job to perfection. Its not as if the senate isn't something of a stuff up now, is it...?
Their jobs are " low validity" .
How do you determine ' expertise ' or ' perfection' ? It is easy in a job like flying or Air Traffic Control because all the parameters are measured and outcomes are obvious and assessed. These are ' high validity ' professions. People actually do become ' expert' .
In political roles, and psychology , there is very little immediate feedback to confirm if someone was correct or incorrect, ( low validity) if a decision was good or bad......who knows until ten years later, and even then only if someone bothers to check up......low validity roles deny the worker the opportunity to change the ways they do things because they don't get the feedback.........therefore they never....ever.....become expert in their role.