Im not trying to bash Cook or anything. Maybe we remember Harrell differently from college. I remember him as a hustle type of player who wasn't necessarily known for his offensive game but got his points by being athletic and rebounding. I also remember him as a consistent rebounder and shot blocker. I think he also was a pretty good offensive rebounder. Essentially a more talented and athletic version of Baer except Harrell may have been a worse shooter than Cook.
Cook on the other hand is known more as a skilled post move player who could score on about anyone in the post if not double teamed. I'm convinced that the shooting touch will come with more work on his shot without having to focus on school. His form isn't terrible. And many great players develop their shot more when they get to the pros. If he had that mid range or even a 25% average from 3 he could be a solid contributor to a pro team.