It's called protecting the business Dave, this is why there is an assessment. Not all commanders are equal. It's up to the individual if they want to accept the job or not.
Exactly right......, you might have the numbers on your resume to go for the position but during the assessment show holes on your game..., No problem! Come as an F/O, gain more experience and go for the brass ring later on....!
Maybe you would rather them not making any offers?
That is pretty common in most contracts worldwide that offer DEC positions..., a lot of guys that I know were offered F/O positions instead of DEC after assessment are now captains...., they didn't take the ridiculous pride stance and after a couple of years of gaining more experience are now on the left seat.
What's wrong with that...?