Putting this down purely on not wanting to make fouls is wrong imo.
It's part of it - but it's still bad habits he picks up with him as a young player, and him not valuing the defensive side of the floor as much.
Again - the way he played for most of the 2nd half of this season especially, was just embarrassing to watch imo and I felt ashamed. flat out dogged it for WAY too many possessions, hardly moved his feet at all, gambled on steals on far too many occasions that imo caused more harm then good, and in general had a bad basketball IQ defensively in terms of team defense when to help, rotate etc and showed little to none effort most times then not.
He has the ability when he wants to - but he doesn't really understand the defensive side of the floor - and imo right now he doesn't want to understand it - and having Smart as our coach might do him good offensively in terms of progression - but it also damages him defensively.
Practicing and player with Team USA could help him in that area as he'll either try alot harder, or get called on it there and understand he must improve it and commit to it more
I'm going to disagree with you a little bit. I think Cuz was between a rock and a hard place. Some of it self induced. Getting on the wrong side of Ref's is nonproductive going forward. But he did, his first year in the league. Plus, like a lot of young players, he's never had to play much defense. Unless you go to one of the highschool basketball academy's, which he didn't, its all about offense. So I think its a combination of lack of experience, and trying not to foul out. For a while, I noticed that he was holding his fouls down in the first half, almost as though he was saving them up for the second half. Unfortunately he ended up using them up at too fast a rate in the second half.
Golden rule for Bigs, and actually anyone playing defense. You play defense with your feet and not your hands. Cuz has the bad habit of trying to play defense with his hands, which is either the lazy or stupid way to play defense. In his case, I think its a combination of both. When he gets tired, he reaches. Plus, I think he thinks he has the greatest hands in the world. Well, he may, but if the ref's see's you reach, they usually blow the whistle.
In short, there were times when he played very good defense, and the majority of time, when he didn't. He needs to get in a little better shape, and probably lose another 10 pounds. Hopefully he'll aquire the services of a good defensive big man coach to work with him on his fundamentals. He'll never be a shotblocker surpreme, but he can certainly be Kendrick Perkins, who is an excellent man defender, and is as ground bound as Cuz is. Maybe even more ground bound than Cuz. Defense is all about desire with intelligence. We all know that Cuz is smart, so no excuses from here on out.