Dude just turned 21 and went from a straight up trash rookie year to putting up 17/7 as a sophomore.
While I'll agree that he's seemed "passive" lately, I think that has to do with confidence (or lack thereof) in his outside shooting. When his shot was on, Fox looked and played like a budding superstar.
His shot mechanics are fine, he just needs the reps. Lonzo he aint! But It'll take more than one off season!
Next season he's gonna make another jump. Don't trip!