I have looked at the numbers. Still think his conditioning could be better.
How about purvis, who defended the best perimeter player for 35 minutes most nights, and wasn't falling on the floor after games like Jalen?
Nothing wrong with saying a player needs to work on his conditioning. He won't be "just ok" defensively then, either. He could be great with his length. He isn't able to display his great athleticism Bc of his conditioning currently.
It's just like saying he needs to work on his shot, and cut down on turnovers. It's part of encouraging him to become a better player.
I guarantee you the coaches are having these kinds of conversations with Jalen.