I wouldn't be so sure. They have absolutely no option for low-post scoring. None. Biyombo is a shot blocker, and that's about it. Drummond ought to develop into a capable, if not great, low-post scorer.
Beal wouldn't shock me (again, a consistent scorer), and Barnes wouldn't (scorer, from UNC) if he weren't such a reach. MKG doesn't make much sense in Charlotte, again, because they need to focus on scoring, and Robinson as a smaller face-up PF probably doesn't tempt them as much as Drummond. But that's just one random dude's opinion, so take it for what it's worth.