I agree mostly. All players are imperfect. He is just a high risk, high reward player. He is improving and having him on the team gives Iowa an athletic presence they often don't have. Cook making short range jumpers, wow, what a tool to have. The more "under control" he plays, the better the team will be. There is a learning curve.I think you can say that about most players because they're imperfect. Ethan Happ shooting free throws would be an example of that. He's still one of the best players in the Big Ten as is Cook. They change how opponents defend their respective teams.
The bottom line is that this team is no where near 18-5 without Cook. He makes the game easier for all of his teammates.