Don't worry, Crean has identified communication lapses - and the decrease of verbal communication more generally in society - as IU's problem on defense. And he's addressing that problem!!
From today's Herald-Times:
Perhaps at the top of the to-do list is honing in on the communication lapses that the Hoosiers cannot afford against the league’s better teams.
“To me, we can be a lot better at that,” Crean said. “We can be a lot better. ... To me, it’s just a commitment to say, ‘No, I’m not going to let my man get it,’ or, ‘I’m going to make sure he knows there’s help. Communication in sports, because of the way things are ... with so little verbal communication being required of people, it’s going to get harder and harder. The bottom line to me is, for those couple hours a day when you got them, you have to absolutely make them talk and hope that it’s going to carry over onto the court.”