Lee is a tough kid. Poythress is still not yet psychologically where he needs to be, and will be. So we should be able to handle something like this better in Feb/Mar than now.
Also Skal simply isn't contributing now. Not unless he going against under sized guys. He's still trying to figure out how to play against equals, and he still needs to learn to "fight for it".
Last night, I rewound at half time, and just watched Lee, and didn't see anything that could have caused this. Must have happened when he was out of the picture. Hopefully not a concussion.