Grandison, as a senior, had the advantages of knowing the system and a few years with Fletch. This was enough to put him in front of Goode and RJ. After a year in the system for Goode and RJ, these advantages have been pretty much negated. Now it is more of a matter of their basketball skills. If the skills are close, I'd play the Sophomores, looking to the future.
I'd love to see Grandison come back - the team flowed much better with him on the floor last year. If he comes back, I expect that his play time will start low (play the kids heavily in non-conf, non-major games), peak early in the big10 season, and then drop off again as the season progresses and the kids get more experience. It is a question of whether Grandison wants the role, and whether there is a roster spot for him. If Underwood leaves one ride open for mid-year transfers, then there is only one scholarship to either pick someone up after the NBA draft withdrawal deadline, or Grandison.