...with a 400 minute sample difference lol. This is why I yelled at everybody years ago when they kept trying to use per/36 for anything. You can't just assume your stats will stay static over the course of a season or with a drastically different minutes workload. These numbers also don't account for the talent you play against and the amount you're playing vs better players.
Now, I think Davion is a special defender, so of course I'd hope the defense gets better when he's on the floor. And with how much he's struggled offensively this year, it's a great sign the overall unit hasn't fallen off when he comes into the game. But just because Fox isn't Davion on defense, doesn't mean he hasn't drastically improved his defensive performance from the last 2 years.