Hmmmmmm. Don't really agree with most of this.
Ross is not slight, kid is pretty jacked up in fact. You can tell he's put a lot of effort working on his body the last couple years. We'll see with him - the one aspect of him I'll hold out hope on is that he's a kid that grew late, could simply be a late bloomer figuring out how to use his body.
Demary may not be as long as listed, but he's also built like a brick #$#house. He may not have that high end length to deter 3's, but he'll be up in grills. I'm honestly not sure I'd call Mullins that undersized at the 3 - he's listed at 6'6", probably closer to 6'5" or so. Kneuppel played the 3 for Duke last year, noted for having an NBA sized roster, was listed at 6'5". Mullins is listed as the same general height as Ajax & Castle, who also played the 3. The 3 in today's world is much more of a guard than a forward. I'm expecting him to be something special by end of year, as he strikes me as a kid that is locked in and with good instincts. Has Castle vibes in that he'll do what it takes to win early, and blossom into a bigger role offensively as the year progresses.
Not sure I agree on Solo/strength - he played much more of a finesse game last year than a strength game, really couldn't body up guys well or take to the rim strong. He is built up top, but has coffee stirrers for legs & is pretty top heavy. I can't think of one instance last year where he actually bullied anyone. He's a jump shooter at this point.
Stew may have a size advantage at the 3, but he's just not a 3 profile in today's world as a bit slow footed and without a great dribble game. So there is a trade off liability at the three on both ends of the floor. Him getting bigger/stronger, and his frame can definitely carry it, only pushes him closer to the 4 profile. I will continue to see him as our future 4 than I see him as a really productive 3.
We underestimate how much of a bulldozer Tarris can be - I think he can be the single most dominant 5 physically in the country this year if he can learn how reign it in. I can't think of one player even close to him in the regard, maybe Zubi, but even Zubi couldn't handle Tarris last year physically. I'm expecting him to dominate in stretches this year as a focused starter with another year in the system.