Not at all! My job as a skilled manager is to look beyond people who are outgoing and help people who are shy get comfortable during the interview. I've become

Not at all! My job as a skilled manager is to look beyond people who are outgoing and help people who are shy get comfortable during the interview. I've become very good at this and have trained other managers to do the same. A casual conversation where someone is purposefully trying to put you at ease is going to be more effective at seeing someone's true skill over a whiteboard every time. There are also a bunch of very senior people that won't play interview games at all. Especially when they're an internal referral. If I refer someone to get hired, I make absolute sure that they are not put through a technical hazing ringer. I've seen senior people who were heavily recruited walk the instant they're put into "the process" under the very sound logic of: "You wanted me to work here, so why are you making this difficult?"