When I look at the video, what I see is a decent handle, good vision and passing ability, a solid looking stroke, and pretty good hops. But, what I really don’t see is him attacking the rim - unless he has a clear path. In all but the last image, whenever he is driving toward the basket and there is a body somewhere in the way, he either falls away or throws up a floater. He simply doesn’t go at anyone with authority or purpose. And, that’s against players that were mostly smaller than him - at least not the size and bulk he is up against every game in D1. And, that has clearly been an issue during his tenure here - he seems to shy away from ANY kind of contact (whether driving, defending or rebounding).
That paragraph highlights what I think happened to Q. Look back at the 2nd or 3rd game of the season. Every time he drove he got called for a charge. If memory serves this continued at a dwindling pace as he began to quit going at people. He wasn’t able to adapt to the faster, quicker, higher talent level of D1 ball quickly enough and its got into his head. Missing his outside shots didn’t help his cause any as well and he got tentative and sped up. In this particular case I don’t think Self tore him down I think he did it to himself and Self is trying, and probably praying, that he digs his way back out.