When they drafted him, it was known to be a project. He's 20 and with his injury, he's played a little over 1 full season of games so far. He's got a lot to work on, maybe Derozan's bootcamp will help him. He did seem a little lost with his role this year, how much of that had to do with his injuries (sprained ankle early and then wrist surgery), IDK.
There was an article out recently that stated PW noticed Derozan's routine of shooting early and late into the night and how he treated his body every day and that PW started to mirror that. Those are the types of things most like to see, somebody following a star and actually wanting to get better.