Andre Drummond is the comp for Duren.
So so defender with athletic skills to be much better. Excellent rebounder who relies on physical/size advantage rather than technique. Absolutely zero basketball skill.
Now we hope he develops better than Drummond did. Year 1 Drummond was basically the same player year 7 Drummond was. That is bad, especially after he signed that huge extension. A guy like that is fine on a rookie deal when he takes up 5-7% of your cap. But he is bad when he takes up 25% of your cap. So hopefully Duren develops some skill. A jumper, post moves, something.