I'm once again going to split hairs to some degree and say the only issue I've seen with the defense thus far is sometimes the second help defender (helping the helper) is late, and an opposing player who wasn't really even working to get open gets left alone right by the hoop. But—and I think this may have been what
@GoodOleDays was getting at—I think that is often due to on-ball defenders being overly aggressive and other guys overcommitting
because the team is up by 30. So, I agree that 99.9% of players and teams can't just "turn it on," but I think Otz's track record suggests the team will be more sound/play better team defense once they've worked out some kinks this month and next, and start playing good teams regularly. In other words, I think they have to cut some things out, as opposed to start doing some things way better.
I think Mississippi State is more an exception than a rule as far as having a quick, experienced, scoring PG who can break a defense down. They scored 80, but I would argue that 1. they had a good shooting night from behind the arc and 2. as that game went on Iowa State started just selling out defensively (in basketball terms), making sure there was a help defender near Hubbard at all times, to the point that they were okay with leaving other guys wide open. If Iowa State's defense is lackluster in every game in Vegas, then we can start having a discussion about how it might lower their ceiling