I like the matchup. Arkansas has a ton of talent with at least 3 NBA players on the team in Anthony Black, Jordan Walsh, and Nick Smith. Ricky Council is their leading scorer and Davis is having a big tournament scoring the ball. The team is incredibly athletic but really young with a lot of one on one scoring, using their athleticism for pull-ups and attacking the rim. They don't shoot it well at all from three.
Jordan Walsh is like Jackson with his athleticism and defense. He doesn't have any of the passing Jackson does but he's even longer and maybe even a better defender. He'll be on Hawkins.
Those 5 players I mentioned are in that 6'3-6'7 range. Once again they'll have no answer for Sanogo and Clingan, their big guys are the Mitchell twins who our bigs should feast on.