base10
Such a thing may not even be pratical, but seems more likely to me than Apple dropping Sandy Bridge processors for ARM.
Now, when is punctuality important? I don't care about 9 vs. 9:30 when getting into the office. I do care care about perpetually running 5 minutes late to a 15 minute team status meeting. There's an unspoken agreement at play; Meetings are short when people show up on time, ready to listen or speak.
But, let's say the candidate does successfully game the interview and gets hired. Your company should absolutely use the first N-days of a new hire to check fit. Many I've seen explicitly say the first three or six months is a probationary period. The problem is when companies aren't honest with themselves about making a bad hire (capability or fit) and letting the new hire go.
Particularly for internal job candidates, I highly recommend being direct and saying, "Here's where you're short. Here's what you can work on over the next year or so to get into a better position. It's not a guarantee, but you'll be better prepared." Give them homework.
If a candidate is really and truly interested, they'll follow through on the advice and follow-up on it. That gives you a better candidate to look at for your next req.