I disagree, and I honestly think it disrespects the work Williams put in at UT. In recruiting and more often in major league baseball, you talk about prospects that are lottery tickets. Grant Williams is the textbook example of one of those lottery tickets actually turning into a prize. He landed in the perfect situation, and that led to him excelling instead of being merely average. Barnes challenged him aggressively, and he responded and then thrived. He had a hall of fame coach. That adds value. Acting like he was ready to dominate on day 1 is revisionist and honestly just silly. You may recall the fat camp articles, and he also put in countless hours working on his D and his jumper. I really, really respect Grant (and view him as one of the best Vols of all time), but in many other programs, I don't think any of us know his name.
Barnes and staff had no clue what they had in Williams. They thought they had a smart, coachable guy who had been overlooked because he was undersized. He was, and is, undersized which Barnes was able to make irrelevant during his college years. Barnes and his staff came up with a perfect gameplan, and Grant rose to the occasion. Looking at this as anything other than a top 1% possible outcome for Williams just doesn't make sense to me, and there's no way you can convince me Barnes knew he had that.